{
    "elements": [{
        "atomic_number": 1,
        "name": "Hydrogen",
        "symbol": "H",
        "atomic_weight": 1,
        "period": 1,
        "group": 1,
        "phase": "gas",
        "most_stable_crystal": "",
        "type": "Nonmetal",
        "ionic_radius": 0.012,
        "atomic_radius": 0.79,
        "electronegativity": 2.2,
        "first_ionization_potential": 13.5984,
        "density": 0.00008988,
        "melting_point": 14.175,
        "boiling_point": 20.28,
        "isotopes": 3,
        "discoverer": "Cavendish",
        "year_of_discovery": "1766",
        "specific_heat_capacity": 14.304,
        "electron_configuration": "1s1",
        "display_row": 1,
        "display_column": 1
    }, {
        "atomic_number": 2,
        "name": "Helium",
        "symbol": "He",
        "atomic_weight": 4,
        "period": 1,
        "group": 18,
        "phase": "gas",
        "most_stable_crystal": "",
        "type": "Noble Gas",
        "ionic_radius": null,
        "atomic_radius": 0.49,
        "electronegativity": null,
        "first_ionization_potential": 24.5874,
        "density": 0.0001785,
        "melting_point": null,
        "boiling_point": 4.22,
        "isotopes": 5,
        "discoverer": "Janssen",
        "year_of_discovery": "1868",
        "specific_heat_capacity": 5.193,
        "electron_configuration": "1s2",
        "display_row": 1,
        "display_column": 18
    }, {
        "atomic_number": 3,
        "name": "Lithium",
        "symbol": "Li",
        "atomic_weight": 6,
        "period": 2,
        "group": 1,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Alkali Metal",
        "ionic_radius": 0.76,
        "atomic_radius": 2.1,
        "electronegativity": 0.98,
        "first_ionization_potential": 5.3917,
        "density": 0.534,
        "melting_point": 453.85,
        "boiling_point": 1615,
        "isotopes": 5,
        "discoverer": "Arfvedson",
        "year_of_discovery": "1817",
        "specific_heat_capacity": 3.582,
        "electron_configuration": "[He] 2s1",
        "display_row": 2,
        "display_column": 1
    }, {
        "atomic_number": 4,
        "name": "Beryllium",
        "symbol": "Be",
        "atomic_weight": 9,
        "period": 2,
        "group": 2,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Alkaline Earth Metal",
        "ionic_radius": 0.35,
        "atomic_radius": 1.4,
        "electronegativity": 1.57,
        "first_ionization_potential": 9.3227,
        "density": 1.85,
        "melting_point": 1560.15,
        "boiling_point": 2742,
        "isotopes": 6,
        "discoverer": "Vaulquelin",
        "year_of_discovery": "1798",
        "specific_heat_capacity": 1.825,
        "electron_configuration": "[He] 2s2",
        "display_row": 2,
        "display_column": 2
    }, {
        "atomic_number": 5,
        "name": "Boron",
        "symbol": "B",
        "atomic_weight": 10,
        "period": 2,
        "group": 13,
        "phase": "solid",
        "most_stable_crystal": "rho",
        "type": "Metalloid",
        "ionic_radius": 0.23,
        "atomic_radius": 1.2,
        "electronegativity": 2.04,
        "first_ionization_potential": 8.298,
        "density": 2.34,
        "melting_point": 2573.15,
        "boiling_point": 4200,
        "isotopes": 6,
        "discoverer": "Gay-Lussac",
        "year_of_discovery": "1808",
        "specific_heat_capacity": 1.026,
        "electron_configuration": "[He] 2s2 2p1",
        "display_row": 2,
        "display_column": 13
    }, {
        "atomic_number": 6,
        "name": "Carbon",
        "symbol": "C",
        "atomic_weight": 12,
        "period": 2,
        "group": 14,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Nonmetal",
        "ionic_radius": null,
        "atomic_radius": 0.91,
        "electronegativity": 2.55,
        "first_ionization_potential": 11.2603,
        "density": 2.267,
        "melting_point": 3948.15,
        "boiling_point": 4300,
        "isotopes": 7,
        "discoverer": "Prehistoric",
        "year_of_discovery": "",
        "specific_heat_capacity": 0.709,
        "electron_configuration": "[He] 2s2 2p2",
        "display_row": 2,
        "display_column": 14
    }, {
        "atomic_number": 7,
        "name": "Nitrogen",
        "symbol": "N",
        "atomic_weight": 14,
        "period": 2,
        "group": 15,
        "phase": "gas",
        "most_stable_crystal": "",
        "type": "Nonmetal",
        "ionic_radius": 0.13,
        "atomic_radius": 0.75,
        "electronegativity": 3.04,
        "first_ionization_potential": 14.5341,
        "density": 0.0012506,
        "melting_point": 63.29,
        "boiling_point": 77.36,
        "isotopes": 8,
        "discoverer": "Rutherford",
        "year_of_discovery": "1772",
        "specific_heat_capacity": 1.04,
        "electron_configuration": "[He] 2s2 2p3",
        "display_row": 2,
        "display_column": 15
    }, {
        "atomic_number": 8,
        "name": "Oxygen",
        "symbol": "O",
        "atomic_weight": 15,
        "period": 2,
        "group": 16,
        "phase": "gas",
        "most_stable_crystal": "",
        "type": "Nonmetal",
        "ionic_radius": 1.4,
        "atomic_radius": 0.65,
        "electronegativity": 3.44,
        "first_ionization_potential": 13.6181,
        "density": 0.001429,
        "melting_point": 50.5,
        "boiling_point": 90.2,
        "isotopes": 8,
        "discoverer": "Priestley/Scheele",
        "year_of_discovery": "1774",
        "specific_heat_capacity": 0.918,
        "electron_configuration": "[He] 2s2 2p4",
        "display_row": 2,
        "display_column": 16
    }, {
        "atomic_number": 9,
        "name": "Fluorine",
        "symbol": "F",
        "atomic_weight": 18,
        "period": 2,
        "group": 17,
        "phase": "gas",
        "most_stable_crystal": "",
        "type": "Halogen",
        "ionic_radius": 1.3,
        "atomic_radius": 0.57,
        "electronegativity": 3.98,
        "first_ionization_potential": 17.4228,
        "density": 0.001696,
        "melting_point": 53.63,
        "boiling_point": 85.03,
        "isotopes": 6,
        "discoverer": "Moissan",
        "year_of_discovery": "1886",
        "specific_heat_capacity": 0.824,
        "electron_configuration": "[He] 2s2 2p5",
        "display_row": 2,
        "display_column": 17
    }, {
        "atomic_number": 10,
        "name": "Neon",
        "symbol": "Ne",
        "atomic_weight": 20,
        "period": 2,
        "group": 18,
        "phase": "gas",
        "most_stable_crystal": "",
        "type": "Noble Gas",
        "ionic_radius": null,
        "atomic_radius": 0.51,
        "electronegativity": null,
        "first_ionization_potential": 21.5645,
        "density": 0.0008999,
        "melting_point": 24.703,
        "boiling_point": 27.07,
        "isotopes": 8,
        "discoverer": "Ramsay and Travers",
        "year_of_discovery": "1898",
        "specific_heat_capacity": 1.03,
        "electron_configuration": "[He] 2s2 2p6",
        "display_row": 2,
        "display_column": 18
    }, {
        "atomic_number": 11,
        "name": "Sodium",
        "symbol": "Na",
        "atomic_weight": 22,
        "period": 3,
        "group": 1,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Alkali Metal",
        "ionic_radius": 1,
        "atomic_radius": 2.2,
        "electronegativity": 0.93,
        "first_ionization_potential": 5.1391,
        "density": 0.971,
        "melting_point": 371.15,
        "boiling_point": 1156,
        "isotopes": 7,
        "discoverer": "Davy",
        "year_of_discovery": "1807",
        "specific_heat_capacity": 1.228,
        "electron_configuration": "[Ne] 3s1",
        "display_row": 3,
        "display_column": 1
    }, {
        "atomic_number": 12,
        "name": "Magnesium",
        "symbol": "Mg",
        "atomic_weight": 24,
        "period": 3,
        "group": 2,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Alkaline Earth Metal",
        "ionic_radius": 0.72,
        "atomic_radius": 1.7,
        "electronegativity": 1.31,
        "first_ionization_potential": 7.6462,
        "density": 1.738,
        "melting_point": 923.15,
        "boiling_point": 1363,
        "isotopes": 8,
        "discoverer": "Black",
        "year_of_discovery": "1755",
        "specific_heat_capacity": 1.023,
        "electron_configuration": "[Ne] 3s2",
        "display_row": 3,
        "display_column": 2
    }, {
        "atomic_number": 13,
        "name": "Aluminum",
        "symbol": "Al",
        "atomic_weight": 26,
        "period": 3,
        "group": 13,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Metal",
        "ionic_radius": 0.54,
        "atomic_radius": 1.8,
        "electronegativity": 1.61,
        "first_ionization_potential": 5.9858,
        "density": 2.698,
        "melting_point": 933.4,
        "boiling_point": 2792,
        "isotopes": 8,
        "discoverer": "W�hler",
        "year_of_discovery": "1827",
        "specific_heat_capacity": 0.897,
        "electron_configuration": "[Ne] 3s2 3p1",
        "display_row": 3,
        "display_column": 13
    }, {
        "atomic_number": 14,
        "name": "Silicon",
        "symbol": "Si",
        "atomic_weight": 28,
        "period": 3,
        "group": 14,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Metalloid",
        "ionic_radius": 0.4,
        "atomic_radius": 1.5,
        "electronegativity": 1.9,
        "first_ionization_potential": 8.1517,
        "density": 2.3296,
        "melting_point": 1683.15,
        "boiling_point": 3538,
        "isotopes": 8,
        "discoverer": "Berzelius",
        "year_of_discovery": "1824",
        "specific_heat_capacity": 0.705,
        "electron_configuration": "[Ne] 3s2 3p2",
        "display_row": 3,
        "display_column": 14
    }, {
        "atomic_number": 15,
        "name": "Phosphorus",
        "symbol": "P",
        "atomic_weight": 30,
        "period": 3,
        "group": 15,
        "phase": "solid",
        "most_stable_crystal": "cub",
        "type": "Nonmetal",
        "ionic_radius": 0.38,
        "atomic_radius": 1.2,
        "electronegativity": 2.19,
        "first_ionization_potential": 10.4867,
        "density": 1.82,
        "melting_point": 317.25,
        "boiling_point": 553,
        "isotopes": 7,
        "discoverer": "BranBrand",
        "year_of_discovery": "1669",
        "specific_heat_capacity": 0.769,
        "electron_configuration": "[Ne] 3s2 3p3",
        "display_row": 3,
        "display_column": 15
    }, {
        "atomic_number": 16,
        "name": "Sulfur",
        "symbol": "S",
        "atomic_weight": 32,
        "period": 3,
        "group": 16,
        "phase": "solid",
        "most_stable_crystal": "orth",
        "type": "Nonmetal",
        "ionic_radius": 0.37,
        "atomic_radius": 1.1,
        "electronegativity": 2.58,
        "first_ionization_potential": 10.36,
        "density": 2.067,
        "melting_point": 388.51,
        "boiling_point": 717.8,
        "isotopes": 10,
        "discoverer": "Prehistoric",
        "year_of_discovery": "",
        "specific_heat_capacity": 0.71,
        "electron_configuration": "[Ne] 3s2 3p4",
        "display_row": 3,
        "display_column": 16
    }, {
        "atomic_number": 17,
        "name": "Chlorine",
        "symbol": "Cl",
        "atomic_weight": 35,
        "period": 3,
        "group": 17,
        "phase": "gas",
        "most_stable_crystal": "",
        "type": "Halogen",
        "ionic_radius": 1.8,
        "atomic_radius": 0.97,
        "electronegativity": 3.16,
        "first_ionization_potential": 12.9676,
        "density": 0.003214,
        "melting_point": 172.31,
        "boiling_point": 239.11,
        "isotopes": 11,
        "discoverer": "Scheele",
        "year_of_discovery": "1774",
        "specific_heat_capacity": 0.479,
        "electron_configuration": "[Ne] 3s2 3p5",
        "display_row": 3,
        "display_column": 17
    }, {
        "atomic_number": 18,
        "name": "Argon",
        "symbol": "Ar",
        "atomic_weight": 39,
        "period": 3,
        "group": 18,
        "phase": "gas",
        "most_stable_crystal": "",
        "type": "Noble Gas",
        "ionic_radius": null,
        "atomic_radius": 0.88,
        "electronegativity": null,
        "first_ionization_potential": 15.7596,
        "density": 0.0017837,
        "melting_point": 83.96,
        "boiling_point": 87.3,
        "isotopes": 8,
        "discoverer": "Rayleigh and Ramsay",
        "year_of_discovery": "1894",
        "specific_heat_capacity": 0.52,
        "electron_configuration": "[Ne] 3s2 3p6",
        "display_row": 3,
        "display_column": 18
    }, {
        "atomic_number": 19,
        "name": "Potassium",
        "symbol": "K",
        "atomic_weight": 39,
        "period": 4,
        "group": 1,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Alkali Metal",
        "ionic_radius": 1.4,
        "atomic_radius": 2.8,
        "electronegativity": 0.82,
        "first_ionization_potential": 4.3407,
        "density": 0.862,
        "melting_point": 336.5,
        "boiling_point": 1032,
        "isotopes": 10,
        "discoverer": "Davy",
        "year_of_discovery": "1807",
        "specific_heat_capacity": 0.757,
        "electron_configuration": "[Ar] 4s1",
        "display_row": 4,
        "display_column": 1
    }, {
        "atomic_number": 20,
        "name": "Calcium",
        "symbol": "Ca",
        "atomic_weight": 40,
        "period": 4,
        "group": 2,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Alkaline Earth Metal",
        "ionic_radius": 0.99,
        "atomic_radius": 2.2,
        "electronegativity": 1,
        "first_ionization_potential": 6.1132,
        "density": 1.54,
        "melting_point": 1112.15,
        "boiling_point": 1757,
        "isotopes": 14,
        "discoverer": "Davy",
        "year_of_discovery": "1808",
        "specific_heat_capacity": 0.647,
        "electron_configuration": "[Ar] 4s2",
        "display_row": 4,
        "display_column": 2
    }, {
        "atomic_number": 21,
        "name": "Scandium",
        "symbol": "Sc",
        "atomic_weight": 44,
        "period": 4,
        "group": 3,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Transition Metal",
        "ionic_radius": 0.75,
        "atomic_radius": 2.1,
        "electronegativity": 1.36,
        "first_ionization_potential": 6.5615,
        "density": 2.989,
        "melting_point": 1812.15,
        "boiling_point": 3109,
        "isotopes": 15,
        "discoverer": "Nilson",
        "year_of_discovery": "1878",
        "specific_heat_capacity": 0.568,
        "electron_configuration": "[Ar] 3d1 4s2",
        "display_row": 4,
        "display_column": 3
    }, {
        "atomic_number": 22,
        "name": "Titanium",
        "symbol": "Ti",
        "atomic_weight": 47,
        "period": 4,
        "group": 4,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Transition Metal",
        "ionic_radius": 0.61,
        "atomic_radius": 2,
        "electronegativity": 1.54,
        "first_ionization_potential": 6.8281,
        "density": 4.54,
        "melting_point": 1933.15,
        "boiling_point": 3560,
        "isotopes": 9,
        "discoverer": "Gregor",
        "year_of_discovery": "1791",
        "specific_heat_capacity": 0.523,
        "electron_configuration": "[Ar] 3d2 4s2",
        "display_row": 4,
        "display_column": 4
    }, {
        "atomic_number": 23,
        "name": "Vanadium",
        "symbol": "V",
        "atomic_weight": 50,
        "period": 4,
        "group": 5,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Transition Metal",
        "ionic_radius": 0.59,
        "atomic_radius": 1.9,
        "electronegativity": 1.63,
        "first_ionization_potential": 6.7462,
        "density": 6.11,
        "melting_point": 2175.15,
        "boiling_point": 3680,
        "isotopes": 9,
        "discoverer": "del Rio",
        "year_of_discovery": "1801",
        "specific_heat_capacity": 0.489,
        "electron_configuration": "[Ar] 3d3 4s2",
        "display_row": 4,
        "display_column": 5
    }, {
        "atomic_number": 24,
        "name": "Chromium",
        "symbol": "Cr",
        "atomic_weight": 51,
        "period": 4,
        "group": 6,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Transition Metal",
        "ionic_radius": 0.52,
        "atomic_radius": 1.9,
        "electronegativity": 1.66,
        "first_ionization_potential": 6.7665,
        "density": 7.15,
        "melting_point": 2130.15,
        "boiling_point": 2944,
        "isotopes": 9,
        "discoverer": "Vauquelin",
        "year_of_discovery": "1797",
        "specific_heat_capacity": 0.449,
        "electron_configuration": "[Ar] 3d5 4s1",
        "display_row": 4,
        "display_column": 6
    }, {
        "atomic_number": 25,
        "name": "Manganese",
        "symbol": "Mn",
        "atomic_weight": 54,
        "period": 4,
        "group": 7,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Transition Metal",
        "ionic_radius": 0.46,
        "atomic_radius": 1.8,
        "electronegativity": 1.55,
        "first_ionization_potential": 7.434,
        "density": 7.44,
        "melting_point": 1519.15,
        "boiling_point": 2334,
        "isotopes": 11,
        "discoverer": "Gahn, Scheele",
        "year_of_discovery": "1774",
        "specific_heat_capacity": 0.479,
        "electron_configuration": "[Ar] 3d5 4s2",
        "display_row": 4,
        "display_column": 7
    }, {
        "atomic_number": 26,
        "name": "Iron",
        "symbol": "Fe",
        "atomic_weight": 55,
        "period": 4,
        "group": 8,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Transition Metal",
        "ionic_radius": 0.65,
        "atomic_radius": 1.7,
        "electronegativity": 1.83,
        "first_ionization_potential": 7.9024,
        "density": 7.874,
        "melting_point": 1808.15,
        "boiling_point": 3134,
        "isotopes": 10,
        "discoverer": "Prehistoric",
        "year_of_discovery": "",
        "specific_heat_capacity": 0.449,
        "electron_configuration": "[Ar] 3d6 4s2",
        "display_row": 4,
        "display_column": 8
    }, {
        "atomic_number": 27,
        "name": "Cobalt",
        "symbol": "Co",
        "atomic_weight": 58,
        "period": 4,
        "group": 9,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Transition Metal",
        "ionic_radius": 0.75,
        "atomic_radius": 1.7,
        "electronegativity": 1.88,
        "first_ionization_potential": 7.881,
        "density": 8.86,
        "melting_point": 1768.15,
        "boiling_point": 3200,
        "isotopes": 14,
        "discoverer": "Brandt",
        "year_of_discovery": "1735",
        "specific_heat_capacity": 0.421,
        "electron_configuration": "[Ar] 3d7 4s2",
        "display_row": 4,
        "display_column": 9
    }, {
        "atomic_number": 28,
        "name": "Nickel",
        "symbol": "Ni",
        "atomic_weight": 58,
        "period": 4,
        "group": 10,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Transition Metal",
        "ionic_radius": 0.69,
        "atomic_radius": 1.6,
        "electronegativity": 1.91,
        "first_ionization_potential": 7.6398,
        "density": 8.912,
        "melting_point": 1726.15,
        "boiling_point": 3186,
        "isotopes": 11,
        "discoverer": "Cronstedt",
        "year_of_discovery": "1751",
        "specific_heat_capacity": 0.444,
        "electron_configuration": "[Ar] 3d8 4s2",
        "display_row": 4,
        "display_column": 10
    }, {
        "atomic_number": 29,
        "name": "Copper",
        "symbol": "Cu",
        "atomic_weight": 63,
        "period": 4,
        "group": 11,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Transition Metal",
        "ionic_radius": 0.73,
        "atomic_radius": 1.6,
        "electronegativity": 1.9,
        "first_ionization_potential": 7.7264,
        "density": 8.96,
        "melting_point": 1357.75,
        "boiling_point": 2835,
        "isotopes": 11,
        "discoverer": "Prehistoric",
        "year_of_discovery": "",
        "specific_heat_capacity": 0.385,
        "electron_configuration": "[Ar] 3d10 4s1",
        "display_row": 4,
        "display_column": 11
    }, {
        "atomic_number": 30,
        "name": "Zinc",
        "symbol": "Zn",
        "atomic_weight": 65,
        "period": 4,
        "group": 12,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Transition Metal",
        "ionic_radius": 0.74,
        "atomic_radius": 1.5,
        "electronegativity": 1.65,
        "first_ionization_potential": 9.3942,
        "density": 7.134,
        "melting_point": 692.88,
        "boiling_point": 1180,
        "isotopes": 15,
        "discoverer": "Prehistoric",
        "year_of_discovery": "",
        "specific_heat_capacity": 0.388,
        "electron_configuration": "[Ar] 3d10 4s2",
        "display_row": 4,
        "display_column": 12
    }, {
        "atomic_number": 31,
        "name": "Gallium",
        "symbol": "Ga",
        "atomic_weight": 69,
        "period": 4,
        "group": 13,
        "phase": "solid",
        "most_stable_crystal": "orth",
        "type": "Metal",
        "ionic_radius": 0.62,
        "atomic_radius": 1.8,
        "electronegativity": 1.81,
        "first_ionization_potential": 5.9993,
        "density": 5.907,
        "melting_point": 302.91,
        "boiling_point": 2477,
        "isotopes": 14,
        "discoverer": "de Boisbaudran",
        "year_of_discovery": "1875",
        "specific_heat_capacity": 0.371,
        "electron_configuration": "[Ar] 3d10 4s2 4p1",
        "display_row": 4,
        "display_column": 13
    }, {
        "atomic_number": 32,
        "name": "Germanium",
        "symbol": "Ge",
        "atomic_weight": 72,
        "period": 4,
        "group": 14,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Metalloid",
        "ionic_radius": 0.53,
        "atomic_radius": 1.5,
        "electronegativity": 2.01,
        "first_ionization_potential": 7.8994,
        "density": 5.323,
        "melting_point": 1211.45,
        "boiling_point": 3106,
        "isotopes": 17,
        "discoverer": "Winkler",
        "year_of_discovery": "1886",
        "specific_heat_capacity": 0.32,
        "electron_configuration": "[Ar] 3d10 4s2 4p2",
        "display_row": 4,
        "display_column": 14
    }, {
        "atomic_number": 33,
        "name": "Arsenic",
        "symbol": "As",
        "atomic_weight": 74,
        "period": 4,
        "group": 15,
        "phase": "solid",
        "most_stable_crystal": "rho",
        "type": "Metalloid",
        "ionic_radius": 0.58,
        "atomic_radius": 1.3,
        "electronegativity": 2.18,
        "first_ionization_potential": 9.7886,
        "density": 5.776,
        "melting_point": 1090.15,
        "boiling_point": 887,
        "isotopes": 14,
        "discoverer": "Albertus Magnus",
        "year_of_discovery": "1250",
        "specific_heat_capacity": 0.329,
        "electron_configuration": "[Ar] 3d10 4s2 4p3",
        "display_row": 4,
        "display_column": 15
    }, {
        "atomic_number": 34,
        "name": "Selenium",
        "symbol": "Se",
        "atomic_weight": 78,
        "period": 4,
        "group": 16,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Nonmetal",
        "ionic_radius": 0.5,
        "atomic_radius": 1.2,
        "electronegativity": 2.55,
        "first_ionization_potential": 9.7524,
        "density": 4.809,
        "melting_point": 494.15,
        "boiling_point": 958,
        "isotopes": 20,
        "discoverer": "Berzelius",
        "year_of_discovery": "1817",
        "specific_heat_capacity": 0.321,
        "electron_configuration": "[Ar] 3d10 4s2 4p4",
        "display_row": 4,
        "display_column": 16
    }, {
        "atomic_number": 35,
        "name": "Bromine",
        "symbol": "Br",
        "atomic_weight": 79,
        "period": 4,
        "group": 17,
        "phase": "liq",
        "most_stable_crystal": "",
        "type": "Halogen",
        "ionic_radius": 2,
        "atomic_radius": 1.1,
        "electronegativity": 2.96,
        "first_ionization_potential": 11.8138,
        "density": 3.122,
        "melting_point": 266.05,
        "boiling_point": 332,
        "isotopes": 19,
        "discoverer": "Balard",
        "year_of_discovery": "1826",
        "specific_heat_capacity": 0.474,
        "electron_configuration": "[Ar] 3d10 4s2 4p5",
        "display_row": 4,
        "display_column": 17
    }, {
        "atomic_number": 36,
        "name": "Krypton",
        "symbol": "Kr",
        "atomic_weight": 83,
        "period": 4,
        "group": 18,
        "phase": "gas",
        "most_stable_crystal": "",
        "type": "Noble Gas",
        "ionic_radius": null,
        "atomic_radius": 1,
        "electronegativity": null,
        "first_ionization_potential": 13.9996,
        "density": 0.003733,
        "melting_point": 115.93,
        "boiling_point": 119.93,
        "isotopes": 23,
        "discoverer": "Ramsay and Travers",
        "year_of_discovery": "1898",
        "specific_heat_capacity": 0.248,
        "electron_configuration": "[Ar] 3d10 4s2 4p6",
        "display_row": 4,
        "display_column": 18
    }, {
        "atomic_number": 37,
        "name": "Rubidium",
        "symbol": "Rb",
        "atomic_weight": 85,
        "period": 5,
        "group": 1,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Alkali Metal",
        "ionic_radius": 1.5,
        "atomic_radius": 3,
        "electronegativity": 0.82,
        "first_ionization_potential": 4.1771,
        "density": 1.532,
        "melting_point": 312.79,
        "boiling_point": 961,
        "isotopes": 20,
        "discoverer": "Bunsen and Kirchoff",
        "year_of_discovery": "1861",
        "specific_heat_capacity": 0.363,
        "electron_configuration": "[Kr] 5s1",
        "display_row": 5,
        "display_column": 1
    }, {
        "atomic_number": 38,
        "name": "Strontium",
        "symbol": "Sr",
        "atomic_weight": 87,
        "period": 5,
        "group": 2,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Alkaline Earth Metal",
        "ionic_radius": 1.1,
        "atomic_radius": 2.5,
        "electronegativity": 0.95,
        "first_ionization_potential": 5.6949,
        "density": 2.64,
        "melting_point": 1042.15,
        "boiling_point": 1655,
        "isotopes": 18,
        "discoverer": "Davy",
        "year_of_discovery": "1808",
        "specific_heat_capacity": 0.301,
        "electron_configuration": "[Kr] 5s2",
        "display_row": 5,
        "display_column": 2
    }, {
        "atomic_number": 39,
        "name": "Yttrium",
        "symbol": "Y",
        "atomic_weight": 88,
        "period": 5,
        "group": 3,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Transition Metal",
        "ionic_radius": 0.9,
        "atomic_radius": 2.3,
        "electronegativity": 1.22,
        "first_ionization_potential": 6.2173,
        "density": 4.469,
        "melting_point": 1799.15,
        "boiling_point": 3609,
        "isotopes": 21,
        "discoverer": "Gadolin",
        "year_of_discovery": "1794",
        "specific_heat_capacity": 0.298,
        "electron_configuration": "[Kr] 4d1 5s2",
        "display_row": 5,
        "display_column": 3
    }, {
        "atomic_number": 40,
        "name": "Zirconium",
        "symbol": "Zr",
        "atomic_weight": 91,
        "period": 5,
        "group": 4,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Transition Metal",
        "ionic_radius": 0.72,
        "atomic_radius": 2.2,
        "electronegativity": 1.33,
        "first_ionization_potential": 6.6339,
        "density": 6.506,
        "melting_point": 2125.15,
        "boiling_point": 4682,
        "isotopes": 20,
        "discoverer": "Klaproth",
        "year_of_discovery": "1789",
        "specific_heat_capacity": 0.278,
        "electron_configuration": "[Kr] 4d2 5s2",
        "display_row": 5,
        "display_column": 4
    }, {
        "atomic_number": 41,
        "name": "Niobium",
        "symbol": "Nb",
        "atomic_weight": 92,
        "period": 5,
        "group": 5,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Transition Metal",
        "ionic_radius": 0.69,
        "atomic_radius": 2.1,
        "electronegativity": 1.6,
        "first_ionization_potential": 6.7589,
        "density": 8.57,
        "melting_point": 2741.15,
        "boiling_point": 5017,
        "isotopes": 24,
        "discoverer": "Hatchett",
        "year_of_discovery": "1801",
        "specific_heat_capacity": 0.265,
        "electron_configuration": "[Kr] 4d4 5s1",
        "display_row": 5,
        "display_column": 5
    }, {
        "atomic_number": 42,
        "name": "Molybdenum",
        "symbol": "Mo",
        "atomic_weight": 95,
        "period": 5,
        "group": 6,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Transition Metal",
        "ionic_radius": 0.65,
        "atomic_radius": 2,
        "electronegativity": 2.16,
        "first_ionization_potential": 7.0924,
        "density": 10.22,
        "melting_point": 2890.15,
        "boiling_point": 4912,
        "isotopes": 20,
        "discoverer": "Scheele",
        "year_of_discovery": "1778",
        "specific_heat_capacity": 0.251,
        "electron_configuration": "[Kr] 4d5 5s1",
        "display_row": 5,
        "display_column": 6
    }, {
        "atomic_number": 43,
        "name": "Technetium",
        "symbol": "Tc",
        "atomic_weight": 98,
        "period": 5,
        "group": 7,
        "phase": "artificial",
        "most_stable_crystal": "hex",
        "type": "Transition Metal",
        "ionic_radius": 0.56,
        "atomic_radius": 2,
        "electronegativity": 1.9,
        "first_ionization_potential": 7.28,
        "density": 11.5,
        "melting_point": 2473.15,
        "boiling_point": 5150,
        "isotopes": 23,
        "discoverer": "Perrier and Segr�",
        "year_of_discovery": "1937",
        "specific_heat_capacity": null,
        "electron_configuration": "[Kr] 4d5 5s2",
        "display_row": 5,
        "display_column": 7
    }, {
        "atomic_number": 44,
        "name": "Ruthenium",
        "symbol": "Ru",
        "atomic_weight": 101,
        "period": 5,
        "group": 8,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Transition Metal",
        "ionic_radius": 0.68,
        "atomic_radius": 1.9,
        "electronegativity": 2.2,
        "first_ionization_potential": 7.3605,
        "density": 12.37,
        "melting_point": 2523.15,
        "boiling_point": 4423,
        "isotopes": 16,
        "discoverer": "Klaus",
        "year_of_discovery": "1844",
        "specific_heat_capacity": 0.238,
        "electron_configuration": "[Kr] 4d7 5s1",
        "display_row": 5,
        "display_column": 8
    }, {
        "atomic_number": 45,
        "name": "Rhodium",
        "symbol": "Rh",
        "atomic_weight": 102,
        "period": 5,
        "group": 9,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Transition Metal",
        "ionic_radius": 0.68,
        "atomic_radius": 1.8,
        "electronegativity": 2.28,
        "first_ionization_potential": 7.4589,
        "density": 12.41,
        "melting_point": 2239.15,
        "boiling_point": 3968,
        "isotopes": 20,
        "discoverer": "Wollaston",
        "year_of_discovery": "1803",
        "specific_heat_capacity": 0.243,
        "electron_configuration": "[Kr] 4d8 5s1",
        "display_row": 5,
        "display_column": 9
    }, {
        "atomic_number": 46,
        "name": "Palladium",
        "symbol": "Pd",
        "atomic_weight": 106,
        "period": 5,
        "group": 10,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Transition Metal",
        "ionic_radius": 0.86,
        "atomic_radius": 1.8,
        "electronegativity": 2.2,
        "first_ionization_potential": 8.3369,
        "density": 12.02,
        "melting_point": 1825.15,
        "boiling_point": 3236,
        "isotopes": 21,
        "discoverer": "Wollaston",
        "year_of_discovery": "1803",
        "specific_heat_capacity": 0.244,
        "electron_configuration": "[Kr] 4d10",
        "display_row": 5,
        "display_column": 10
    }, {
        "atomic_number": 47,
        "name": "Silver",
        "symbol": "Ag",
        "atomic_weight": 107,
        "period": 5,
        "group": 11,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Transition Metal",
        "ionic_radius": 1.3,
        "atomic_radius": 1.8,
        "electronegativity": 1.93,
        "first_ionization_potential": 7.5762,
        "density": 10.501,
        "melting_point": 1234.15,
        "boiling_point": 2435,
        "isotopes": 27,
        "discoverer": "Prehistoric",
        "year_of_discovery": "",
        "specific_heat_capacity": 0.235,
        "electron_configuration": "[Kr] 4d10 5s1",
        "display_row": 5,
        "display_column": 11
    }, {
        "atomic_number": 48,
        "name": "Cadmium",
        "symbol": "Cd",
        "atomic_weight": 112,
        "period": 5,
        "group": 12,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Transition Metal",
        "ionic_radius": 0.97,
        "atomic_radius": 1.7,
        "electronegativity": 1.69,
        "first_ionization_potential": 8.9938,
        "density": 8.69,
        "melting_point": 594.33,
        "boiling_point": 1040,
        "isotopes": 22,
        "discoverer": "Stromeyer",
        "year_of_discovery": "1817",
        "specific_heat_capacity": 0.232,
        "electron_configuration": "[Kr] 4d10 5s2",
        "display_row": 5,
        "display_column": 12
    }, {
        "atomic_number": 49,
        "name": "Indium",
        "symbol": "In",
        "atomic_weight": 114,
        "period": 5,
        "group": 13,
        "phase": "solid",
        "most_stable_crystal": "tet",
        "type": "Metal",
        "ionic_radius": 0.8,
        "atomic_radius": 2,
        "electronegativity": 1.78,
        "first_ionization_potential": 5.7864,
        "density": 7.31,
        "melting_point": 429.91,
        "boiling_point": 2345,
        "isotopes": 34,
        "discoverer": "Reich and Richter",
        "year_of_discovery": "1863",
        "specific_heat_capacity": 0.233,
        "electron_configuration": "[Kr] 4d10 5s2 5p1",
        "display_row": 5,
        "display_column": 13
    }, {
        "atomic_number": 50,
        "name": "Tin",
        "symbol": "Sn",
        "atomic_weight": 118,
        "period": 5,
        "group": 14,
        "phase": "solid",
        "most_stable_crystal": "tet",
        "type": "Metal",
        "ionic_radius": 0.69,
        "atomic_radius": 1.7,
        "electronegativity": 1.96,
        "first_ionization_potential": 7.3439,
        "density": 7.287,
        "melting_point": 505.21,
        "boiling_point": 2875,
        "isotopes": 28,
        "discoverer": "Prehistoric",
        "year_of_discovery": "",
        "specific_heat_capacity": 0.228,
        "electron_configuration": "[Kr] 4d10 5s2 5p2",
        "display_row": 5,
        "display_column": 14
    }, {
        "atomic_number": 51,
        "name": "Antimony",
        "symbol": "Sb",
        "atomic_weight": 121,
        "period": 5,
        "group": 15,
        "phase": "solid",
        "most_stable_crystal": "rho",
        "type": "Metalloid",
        "ionic_radius": 0.76,
        "atomic_radius": 1.5,
        "electronegativity": 2.05,
        "first_ionization_potential": 8.6084,
        "density": 6.685,
        "melting_point": 904.05,
        "boiling_point": 1860,
        "isotopes": 29,
        "discoverer": "Early historic times",
        "year_of_discovery": "",
        "specific_heat_capacity": 0.207,
        "electron_configuration": "[Kr] 4d10 5s2 5p3",
        "display_row": 5,
        "display_column": 15
    }, {
        "atomic_number": 52,
        "name": "Tellurium",
        "symbol": "Te",
        "atomic_weight": 127,
        "period": 5,
        "group": 16,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Metalloid",
        "ionic_radius": 0.97,
        "atomic_radius": 1.4,
        "electronegativity": 2.1,
        "first_ionization_potential": 9.0096,
        "density": 6.232,
        "melting_point": 722.8,
        "boiling_point": 1261,
        "isotopes": 29,
        "discoverer": "von Reichenstein",
        "year_of_discovery": "1782",
        "specific_heat_capacity": 0.202,
        "electron_configuration": "[Kr] 4d10 5s2 5p4",
        "display_row": 5,
        "display_column": 16
    }, {
        "atomic_number": 53,
        "name": "Iodine",
        "symbol": "I",
        "atomic_weight": 126,
        "period": 5,
        "group": 17,
        "phase": "solid",
        "most_stable_crystal": "orth",
        "type": "Halogen",
        "ionic_radius": 2.2,
        "atomic_radius": 1.3,
        "electronegativity": 2.66,
        "first_ionization_potential": 10.4513,
        "density": 4.93,
        "melting_point": 386.65,
        "boiling_point": 457.4,
        "isotopes": 24,
        "discoverer": "Courtois",
        "year_of_discovery": "1811",
        "specific_heat_capacity": 0.214,
        "electron_configuration": "[Kr] 4d10 5s2 5p5",
        "display_row": 5,
        "display_column": 17
    }, {
        "atomic_number": 54,
        "name": "Xenon",
        "symbol": "Xe",
        "atomic_weight": 131,
        "period": 5,
        "group": 18,
        "phase": "gas",
        "most_stable_crystal": "gas",
        "type": "Noble Gas",
        "ionic_radius": null,
        "atomic_radius": 1.2,
        "electronegativity": null,
        "first_ionization_potential": 12.1298,
        "density": 0.005887,
        "melting_point": 161.45,
        "boiling_point": 165.03,
        "isotopes": 31,
        "discoverer": "Ramsay and Travers",
        "year_of_discovery": "1898",
        "specific_heat_capacity": 0.158,
        "electron_configuration": "[Kr] 4d10 5s2 5p6",
        "display_row": 5,
        "display_column": 18
    }, {
        "atomic_number": 55,
        "name": "Cesium",
        "symbol": "Cs",
        "atomic_weight": 132,
        "period": 6,
        "group": 1,
        "phase": "solid",
        "most_stable_crystal": "",
        "type": "Alkali Metal",
        "ionic_radius": 1.7,
        "atomic_radius": 3.3,
        "electronegativity": 0.79,
        "first_ionization_potential": 3.8939,
        "density": 1.873,
        "melting_point": 301.7,
        "boiling_point": 944,
        "isotopes": 22,
        "discoverer": "Bunsen and Kirchoff",
        "year_of_discovery": "1860",
        "specific_heat_capacity": 0.242,
        "electron_configuration": "[Xe] 6s1",
        "display_row": 6,
        "display_column": 1
    }, {
        "atomic_number": 56,
        "name": "Barium",
        "symbol": "Ba",
        "atomic_weight": 137,
        "period": 6,
        "group": 2,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Alkaline Earth Metal",
        "ionic_radius": 1.4,
        "atomic_radius": 2.8,
        "electronegativity": 0.89,
        "first_ionization_potential": 5.2117,
        "density": 3.594,
        "melting_point": 1002.15,
        "boiling_point": 2170,
        "isotopes": 25,
        "discoverer": "Davy",
        "year_of_discovery": "1808",
        "specific_heat_capacity": 0.204,
        "electron_configuration": "[Xe] 6s2",
        "display_row": 6,
        "display_column": 2
    }, {
        "atomic_number": 57,
        "name": "Lanthanum",
        "symbol": "La",
        "atomic_weight": 138,
        "period": 6,
        "group": 3,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Lanthanide",
        "ionic_radius": 1.1,
        "atomic_radius": 2.7,
        "electronegativity": 1.1,
        "first_ionization_potential": 5.5769,
        "density": 6.145,
        "melting_point": 1193.15,
        "boiling_point": 3737,
        "isotopes": 19,
        "discoverer": "Mosander",
        "year_of_discovery": "1839",
        "specific_heat_capacity": 0.195,
        "electron_configuration": "[Xe] 5d1 6s2",
        "display_row": 8,
        "display_column": 3
    }, {
        "atomic_number": 58,
        "name": "Cerium",
        "symbol": "Ce",
        "atomic_weight": 140,
        "period": 6,
        "group": 19,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Lanthanide",
        "ionic_radius": 1,
        "atomic_radius": 2.7,
        "electronegativity": 1.12,
        "first_ionization_potential": 5.5387,
        "density": 6.77,
        "melting_point": 1071.15,
        "boiling_point": 3716,
        "isotopes": 19,
        "discoverer": "Berzelius",
        "year_of_discovery": "1803",
        "specific_heat_capacity": 0.192,
        "electron_configuration": "[Xe] 4f1 5d1 6s2",
        "display_row": 8,
        "display_column": 4
    }, {
        "atomic_number": 59,
        "name": "Praseodymium",
        "symbol": "Pr",
        "atomic_weight": 140,
        "period": 6,
        "group": 20,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Lanthanide",
        "ionic_radius": 1,
        "atomic_radius": 2.7,
        "electronegativity": 1.13,
        "first_ionization_potential": 5.473,
        "density": 6.773,
        "melting_point": 1204.15,
        "boiling_point": 3793,
        "isotopes": 15,
        "discoverer": "von Welsbach",
        "year_of_discovery": "1885",
        "specific_heat_capacity": 0.193,
        "electron_configuration": "[Xe] 4f3 6s2",
        "display_row": 8,
        "display_column": 5
    }, {
        "atomic_number": 60,
        "name": "Neodymium",
        "symbol": "Nd",
        "atomic_weight": 144,
        "period": 6,
        "group": 21,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Lanthanide",
        "ionic_radius": 1,
        "atomic_radius": 2.6,
        "electronegativity": 1.14,
        "first_ionization_potential": 5.525,
        "density": 7.007,
        "melting_point": 1289.15,
        "boiling_point": 3347,
        "isotopes": 16,
        "discoverer": "von Welsbach",
        "year_of_discovery": "1885",
        "specific_heat_capacity": 0.19,
        "electron_configuration": "[Xe] 4f4 6s2",
        "display_row": 8,
        "display_column": 6
    }, {
        "atomic_number": 61,
        "name": "Promethium",
        "symbol": "Pm",
        "atomic_weight": 145,
        "period": 6,
        "group": 22,
        "phase": "artificial",
        "most_stable_crystal": "hex",
        "type": "Lanthanide",
        "ionic_radius": 0.98,
        "atomic_radius": 2.6,
        "electronegativity": 1.13,
        "first_ionization_potential": 5.582,
        "density": 7.26,
        "melting_point": 1204.15,
        "boiling_point": 3273,
        "isotopes": 14,
        "discoverer": "Marinsky et al.",
        "year_of_discovery": "1945",
        "specific_heat_capacity": null,
        "electron_configuration": "[Xe] 4f5 6s2",
        "display_row": 8,
        "display_column": 7
    }, {
        "atomic_number": 62,
        "name": "Samarium",
        "symbol": "Sm",
        "atomic_weight": 150,
        "period": 6,
        "group": 23,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Lanthanide",
        "ionic_radius": 0.96,
        "atomic_radius": 2.6,
        "electronegativity": 1.17,
        "first_ionization_potential": 5.6437,
        "density": 7.52,
        "melting_point": 1345.15,
        "boiling_point": 2067,
        "isotopes": 17,
        "discoverer": "Boisbaudran",
        "year_of_discovery": "1879",
        "specific_heat_capacity": 0.197,
        "electron_configuration": "[Xe] 4f6 6s2",
        "display_row": 8,
        "display_column": 8
    }, {
        "atomic_number": 63,
        "name": "Europium",
        "symbol": "Eu",
        "atomic_weight": 151,
        "period": 6,
        "group": 24,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Lanthanide",
        "ionic_radius": 0.95,
        "atomic_radius": 2.6,
        "electronegativity": 1.2,
        "first_ionization_potential": 5.6704,
        "density": 5.243,
        "melting_point": 1095.15,
        "boiling_point": 1802,
        "isotopes": 21,
        "discoverer": "Demarcay",
        "year_of_discovery": "1901",
        "specific_heat_capacity": 0.182,
        "electron_configuration": "[Xe] 4f7 6s2",
        "display_row": 8,
        "display_column": 9
    }, {
        "atomic_number": 64,
        "name": "Gadolinium",
        "symbol": "Gd",
        "atomic_weight": 157,
        "period": 6,
        "group": 25,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Lanthanide",
        "ionic_radius": 0.94,
        "atomic_radius": 2.5,
        "electronegativity": 1.2,
        "first_ionization_potential": 6.1501,
        "density": 7.895,
        "melting_point": 1585.15,
        "boiling_point": 3546,
        "isotopes": 17,
        "discoverer": "de Marignac",
        "year_of_discovery": "1880",
        "specific_heat_capacity": 0.236,
        "electron_configuration": "[Xe] 4f7 5d1 6s2",
        "display_row": 8,
        "display_column": 10
    }, {
        "atomic_number": 65,
        "name": "Terbium",
        "symbol": "Tb",
        "atomic_weight": 158,
        "period": 6,
        "group": 26,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Lanthanide",
        "ionic_radius": 0.92,
        "atomic_radius": 2.5,
        "electronegativity": 1.2,
        "first_ionization_potential": 5.8638,
        "density": 8.229,
        "melting_point": 1630.15,
        "boiling_point": 3503,
        "isotopes": 24,
        "discoverer": "Mosander",
        "year_of_discovery": "1843",
        "specific_heat_capacity": 0.182,
        "electron_configuration": "[Xe] 4f9 6s2",
        "display_row": 8,
        "display_column": 11
    }, {
        "atomic_number": 66,
        "name": "Dysprosium",
        "symbol": "Dy",
        "atomic_weight": 162,
        "period": 6,
        "group": 27,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Lanthanide",
        "ionic_radius": 0.91,
        "atomic_radius": 2.5,
        "electronegativity": 1.22,
        "first_ionization_potential": 5.9389,
        "density": 8.55,
        "melting_point": 1680.15,
        "boiling_point": 2840,
        "isotopes": 21,
        "discoverer": "de Boisbaudran",
        "year_of_discovery": "1886",
        "specific_heat_capacity": 0.17,
        "electron_configuration": "[Xe] 4f10 6s2",
        "display_row": 8,
        "display_column": 12
    }, {
        "atomic_number": 67,
        "name": "Holmium",
        "symbol": "Ho",
        "atomic_weight": 164,
        "period": 6,
        "group": 28,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Lanthanide",
        "ionic_radius": 0.9,
        "atomic_radius": 2.5,
        "electronegativity": 1.23,
        "first_ionization_potential": 6.0215,
        "density": 8.795,
        "melting_point": 1743.15,
        "boiling_point": 2993,
        "isotopes": 29,
        "discoverer": "Delafontaine and Soret",
        "year_of_discovery": "1878",
        "specific_heat_capacity": 0.165,
        "electron_configuration": "[Xe] 4f11 6s2",
        "display_row": 8,
        "display_column": 13
    }, {
        "atomic_number": 68,
        "name": "Erbium",
        "symbol": "Er",
        "atomic_weight": 167,
        "period": 6,
        "group": 29,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Lanthanide",
        "ionic_radius": 0.88,
        "atomic_radius": 2.5,
        "electronegativity": 1.24,
        "first_ionization_potential": 6.1077,
        "density": 9.066,
        "melting_point": 1795.15,
        "boiling_point": 3503,
        "isotopes": 16,
        "discoverer": "Mosander",
        "year_of_discovery": "1843",
        "specific_heat_capacity": 0.168,
        "electron_configuration": "[Xe] 4f12 6s2",
        "display_row": 8,
        "display_column": 14
    }, {
        "atomic_number": 69,
        "name": "Thulium",
        "symbol": "Tm",
        "atomic_weight": 168,
        "period": 6,
        "group": 30,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Lanthanide",
        "ionic_radius": 0.87,
        "atomic_radius": 2.4,
        "electronegativity": 1.25,
        "first_ionization_potential": 6.1843,
        "density": 9.321,
        "melting_point": 1818.15,
        "boiling_point": 2223,
        "isotopes": 18,
        "discoverer": "Cleve",
        "year_of_discovery": "1879",
        "specific_heat_capacity": 0.16,
        "electron_configuration": "[Xe] 4f13 6s2",
        "display_row": 8,
        "display_column": 15
    }, {
        "atomic_number": 70,
        "name": "Ytterbium",
        "symbol": "Yb",
        "atomic_weight": 173,
        "period": 6,
        "group": 31,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Lanthanide",
        "ionic_radius": 0.86,
        "atomic_radius": 2.4,
        "electronegativity": 1.1,
        "first_ionization_potential": 6.2542,
        "density": 6.965,
        "melting_point": 1097.15,
        "boiling_point": 1469,
        "isotopes": 16,
        "discoverer": "Marignac",
        "year_of_discovery": "1878",
        "specific_heat_capacity": 0.155,
        "electron_configuration": "[Xe] 4f14 6s2",
        "display_row": 8,
        "display_column": 16
    }, {
        "atomic_number": 71,
        "name": "Lutetium",
        "symbol": "Lu",
        "atomic_weight": 174,
        "period": 6,
        "group": 32,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Lanthanide",
        "ionic_radius": 0.85,
        "atomic_radius": 2.3,
        "electronegativity": 1.27,
        "first_ionization_potential": 5.4259,
        "density": 9.84,
        "melting_point": 1936.15,
        "boiling_point": 3675,
        "isotopes": 22,
        "discoverer": "Urbain/ von Welsbach",
        "year_of_discovery": "1907",
        "specific_heat_capacity": 0.154,
        "electron_configuration": "[Xe] 4f14 5d1 6s2",
        "display_row": 8,
        "display_column": 17
    }, {
        "atomic_number": 72,
        "name": "Hafnium",
        "symbol": "Hf",
        "atomic_weight": 178,
        "period": 6,
        "group": 4,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Transition Metal",
        "ionic_radius": 0.71,
        "atomic_radius": 2.2,
        "electronegativity": 1.3,
        "first_ionization_potential": 6.8251,
        "density": 13.31,
        "melting_point": 2500.15,
        "boiling_point": 4876,
        "isotopes": 17,
        "discoverer": "Coster and von Hevesy",
        "year_of_discovery": "1923",
        "specific_heat_capacity": 0.144,
        "electron_configuration": "[Xe] 4f14 5d2 6s2",
        "display_row": 6,
        "display_column": 4
    }, {
        "atomic_number": 73,
        "name": "Tantalum",
        "symbol": "Ta",
        "atomic_weight": 180,
        "period": 6,
        "group": 5,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Transition Metal",
        "ionic_radius": 0.64,
        "atomic_radius": 2.1,
        "electronegativity": 1.5,
        "first_ionization_potential": 7.5496,
        "density": 16.654,
        "melting_point": 3269.15,
        "boiling_point": 5731,
        "isotopes": 19,
        "discoverer": "Ekeberg",
        "year_of_discovery": "1801",
        "specific_heat_capacity": 0.14,
        "electron_configuration": "[Xe] 4f14 5d3 6s2",
        "display_row": 6,
        "display_column": 5
    }, {
        "atomic_number": 74,
        "name": "Wolfram",
        "symbol": "W",
        "atomic_weight": 183,
        "period": 6,
        "group": 6,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Transition Metal",
        "ionic_radius": 0.62,
        "atomic_radius": 2,
        "electronegativity": 2.36,
        "first_ionization_potential": 7.864,
        "density": 19.25,
        "melting_point": 3680.15,
        "boiling_point": 5828,
        "isotopes": 22,
        "discoverer": "J. and F. d'Elhuyar",
        "year_of_discovery": "1783",
        "specific_heat_capacity": 0.132,
        "electron_configuration": "[Xe] 4f14 5d4 6s2",
        "display_row": 6,
        "display_column": 6
    }, {
        "atomic_number": 75,
        "name": "Rhenium",
        "symbol": "Re",
        "atomic_weight": 186,
        "period": 6,
        "group": 7,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Transition Metal",
        "ionic_radius": 0.56,
        "atomic_radius": 2,
        "electronegativity": 1.9,
        "first_ionization_potential": 7.8335,
        "density": 21.02,
        "melting_point": 3453.15,
        "boiling_point": 5869,
        "isotopes": 21,
        "discoverer": "Noddack, Berg, and Tacke",
        "year_of_discovery": "1925",
        "specific_heat_capacity": 0.137,
        "electron_configuration": "[Xe] 4f14 5d5 6s2",
        "display_row": 6,
        "display_column": 7
    }, {
        "atomic_number": 76,
        "name": "Osmium",
        "symbol": "Os",
        "atomic_weight": 190,
        "period": 6,
        "group": 8,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Transition Metal",
        "ionic_radius": 0.63,
        "atomic_radius": 1.9,
        "electronegativity": 2.2,
        "first_ionization_potential": 8.4382,
        "density": 22.61,
        "melting_point": 3300.15,
        "boiling_point": 5285,
        "isotopes": 19,
        "discoverer": "Tennant",
        "year_of_discovery": "1803",
        "specific_heat_capacity": 0.13,
        "electron_configuration": "[Xe] 4f14 5d6 6s2",
        "display_row": 6,
        "display_column": 8
    }, {
        "atomic_number": 77,
        "name": "Iridium",
        "symbol": "Ir",
        "atomic_weight": 192,
        "period": 6,
        "group": 9,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Transition Metal",
        "ionic_radius": 0.63,
        "atomic_radius": 1.9,
        "electronegativity": 2.2,
        "first_ionization_potential": 8.967,
        "density": 22.56,
        "melting_point": 2716.15,
        "boiling_point": 4701,
        "isotopes": 25,
        "discoverer": "Tennant",
        "year_of_discovery": "1804",
        "specific_heat_capacity": 0.131,
        "electron_configuration": "[Xe] 4f14 5d7 6s2",
        "display_row": 6,
        "display_column": 9
    }, {
        "atomic_number": 78,
        "name": "Platinum",
        "symbol": "Pt",
        "atomic_weight": 195,
        "period": 6,
        "group": 10,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Transition Metal",
        "ionic_radius": 0.63,
        "atomic_radius": 1.8,
        "electronegativity": 2.28,
        "first_ionization_potential": 8.9587,
        "density": 21.46,
        "melting_point": 2045.15,
        "boiling_point": 4098,
        "isotopes": 32,
        "discoverer": "Ulloa/Wood",
        "year_of_discovery": "1735",
        "specific_heat_capacity": 0.133,
        "electron_configuration": "[Xe] 4f14 5d9 6s1",
        "display_row": 6,
        "display_column": 10
    }, {
        "atomic_number": 79,
        "name": "Gold",
        "symbol": "Au",
        "atomic_weight": 196,
        "period": 6,
        "group": 11,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Transition Metal",
        "ionic_radius": 0.85,
        "atomic_radius": 1.8,
        "electronegativity": 2.54,
        "first_ionization_potential": 9.2255,
        "density": 19.282,
        "melting_point": 1337.73,
        "boiling_point": 3129,
        "isotopes": 21,
        "discoverer": "Prehistoric",
        "year_of_discovery": "",
        "specific_heat_capacity": 0.129,
        "electron_configuration": "[Xe] 4f14 5d10 6s1",
        "display_row": 6,
        "display_column": 11
    }, {
        "atomic_number": 80,
        "name": "Mercury",
        "symbol": "Hg",
        "atomic_weight": 200,
        "period": 6,
        "group": 12,
        "phase": "liq",
        "most_stable_crystal": "",
        "type": "Transition Metal",
        "ionic_radius": 1,
        "atomic_radius": 1.8,
        "electronegativity": 2,
        "first_ionization_potential": 10.4375,
        "density": 13.5336,
        "melting_point": 234.43,
        "boiling_point": 630,
        "isotopes": 26,
        "discoverer": "Prehistoric",
        "year_of_discovery": "",
        "specific_heat_capacity": 0.14,
        "electron_configuration": "[Xe] 4f14 5d10 6s2",
        "display_row": 6,
        "display_column": 12
    }, {
        "atomic_number": 81,
        "name": "Thallium",
        "symbol": "Tl",
        "atomic_weight": 204,
        "period": 6,
        "group": 13,
        "phase": "solid",
        "most_stable_crystal": "hex",
        "type": "Metal",
        "ionic_radius": 1.5,
        "atomic_radius": 2.1,
        "electronegativity": 2.04,
        "first_ionization_potential": 6.1082,
        "density": 11.85,
        "melting_point": 577.15,
        "boiling_point": 1746,
        "isotopes": 28,
        "discoverer": "Crookes",
        "year_of_discovery": "1861",
        "specific_heat_capacity": 0.129,
        "electron_configuration": "[Xe] 4f14 5d10 6s2 6p1",
        "display_row": 6,
        "display_column": 13
    }, {
        "atomic_number": 82,
        "name": "Lead",
        "symbol": "Pb",
        "atomic_weight": 207,
        "period": 6,
        "group": 14,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Metal",
        "ionic_radius": 1.2,
        "atomic_radius": 1.8,
        "electronegativity": 2.33,
        "first_ionization_potential": 7.4167,
        "density": 11.342,
        "melting_point": 600.75,
        "boiling_point": 2022,
        "isotopes": 29,
        "discoverer": "Prehistoric",
        "year_of_discovery": "",
        "specific_heat_capacity": 0.129,
        "electron_configuration": "[Xe] 4f14 5d10 6s2 6p2",
        "display_row": 6,
        "display_column": 14
    }, {
        "atomic_number": 83,
        "name": "Bismuth",
        "symbol": "Bi",
        "atomic_weight": 208,
        "period": 6,
        "group": 15,
        "phase": "solid",
        "most_stable_crystal": "rho",
        "type": "Metal",
        "ionic_radius": 1,
        "atomic_radius": 1.6,
        "electronegativity": 2.02,
        "first_ionization_potential": 7.2856,
        "density": 9.807,
        "melting_point": 544.67,
        "boiling_point": 1837,
        "isotopes": 19,
        "discoverer": "Geoffroy the Younger",
        "year_of_discovery": "1753",
        "specific_heat_capacity": 0.122,
        "electron_configuration": "[Xe] 4f14 5d10 6s2 6p3",
        "display_row": 6,
        "display_column": 15
    }, {
        "atomic_number": 84,
        "name": "Polonium",
        "symbol": "Po",
        "atomic_weight": 210,
        "period": 6,
        "group": 16,
        "phase": "solid",
        "most_stable_crystal": "cub",
        "type": "Metalloid",
        "ionic_radius": 2.3,
        "atomic_radius": 1.5,
        "electronegativity": 2,
        "first_ionization_potential": 8.417,
        "density": 9.32,
        "melting_point": 527.15,
        "boiling_point": 1235,
        "isotopes": 34,
        "discoverer": "Curie",
        "year_of_discovery": "1898",
        "specific_heat_capacity": null,
        "electron_configuration": "[Xe] 4f14 5d10 6s2 6p4",
        "display_row": 6,
        "display_column": 16
    }, {
        "atomic_number": 85,
        "name": "Astatine",
        "symbol": "At",
        "atomic_weight": 210,
        "period": 6,
        "group": 17,
        "phase": "solid",
        "most_stable_crystal": "",
        "type": "Noble Gas",
        "ionic_radius": null,
        "atomic_radius": 1.4,
        "electronegativity": 2.2,
        "first_ionization_potential": 9.3,
        "density": 7,
        "melting_point": 575.15,
        "boiling_point": 610,
        "isotopes": 21,
        "discoverer": "Corson et al.",
        "year_of_discovery": "1940",
        "specific_heat_capacity": null,
        "electron_configuration": "[Xe] 4f14 5d10 6s2 6p5",
        "display_row": 6,
        "display_column": 17
    }, {
        "atomic_number": 86,
        "name": "Radon",
        "symbol": "Rn",
        "atomic_weight": 222,
        "period": 6,
        "group": 18,
        "phase": "gas",
        "most_stable_crystal": "",
        "type": "Alkali Metal",
        "ionic_radius": null,
        "atomic_radius": 1.3,
        "electronegativity": null,
        "first_ionization_potential": 10.7485,
        "density": 0.00973,
        "melting_point": 202.15,
        "boiling_point": 211.3,
        "isotopes": 20,
        "discoverer": "Dorn",
        "year_of_discovery": "1900",
        "specific_heat_capacity": 0.094,
        "electron_configuration": "[Xe] 4f14 5d10 6s2 6p6",
        "display_row": 6,
        "display_column": 18
    }, {
        "atomic_number": 87,
        "name": "Francium",
        "symbol": "Fr",
        "atomic_weight": 223,
        "period": 7,
        "group": 1,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Alkaline Earth Metal",
        "ionic_radius": 1.8,
        "atomic_radius": null,
        "electronegativity": 0.7,
        "first_ionization_potential": 4.0727,
        "density": 1.87,
        "melting_point": 300.15,
        "boiling_point": 950,
        "isotopes": 21,
        "discoverer": "Perey",
        "year_of_discovery": "1939",
        "specific_heat_capacity": null,
        "electron_configuration": "[Rn] 7s1",
        "display_row": 7,
        "display_column": 1
    }, {
        "atomic_number": 88,
        "name": "Radium",
        "symbol": "Ra",
        "atomic_weight": 226,
        "period": 7,
        "group": 2,
        "phase": "solid",
        "most_stable_crystal": "bcc",
        "type": "Actinide",
        "ionic_radius": 1.4,
        "atomic_radius": null,
        "electronegativity": 0.9,
        "first_ionization_potential": 5.2784,
        "density": 5.5,
        "melting_point": 973.15,
        "boiling_point": 2010,
        "isotopes": 15,
        "discoverer": "Pierre and Marie Curie",
        "year_of_discovery": "1898",
        "specific_heat_capacity": null,
        "electron_configuration": "[Rn] 7s2",
        "display_row": 7,
        "display_column": 2
    }, {
        "atomic_number": 89,
        "name": "Actinium",
        "symbol": "Ac",
        "atomic_weight": 227,
        "period": 7,
        "group": 3,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Actinide",
        "ionic_radius": 1.1,
        "atomic_radius": null,
        "electronegativity": 1.1,
        "first_ionization_potential": 5.17,
        "density": 10.07,
        "melting_point": 1323.15,
        "boiling_point": 3471,
        "isotopes": 11,
        "discoverer": "Debierne/Giesel",
        "year_of_discovery": "1899",
        "specific_heat_capacity": 0.12,
        "electron_configuration": "[Rn] 6d1 7s2",
        "display_row": 9,
        "display_column": 3
    }, {
        "atomic_number": 90,
        "name": "Thorium",
        "symbol": "Th",
        "atomic_weight": 232,
        "period": 7,
        "group": 19,
        "phase": "solid",
        "most_stable_crystal": "fcc",
        "type": "Actinide",
        "ionic_radius": 0.97,
        "atomic_radius": null,
        "electronegativity": 1.3,
        "first_ionization_potential": 6.3067,
        "density": 11.72,
        "melting_point": 2028.15,
        "boiling_point": 5061,
        "isotopes": 12,
        "discoverer": "Berzelius",
        "year_of_discovery": "1828",
        "specific_heat_capacity": 0.113,
        "electron_configuration": "[Rn] 6d2 7s2",
        "display_row": 9,
        "display_column": 4
    }, {
        "atomic_number": 91,
        "name": "Protactinium",
        "symbol": "Pa",
        "atomic_weight": 231,
        "period": 7,
        "group": 20,
        "phase": "solid",
        "most_stable_crystal": "orth",
        "type": "Actinide",
        "ionic_radius": 0.78,
        "atomic_radius": null,
        "electronegativity": 1.5,
        "first_ionization_potential": 5.89,
        "density": 15.37,
        "melting_point": 1873.15,
        "boiling_point": 4300,
        "isotopes": 14,
        "discoverer": "Hahn and Meitner",
        "year_of_discovery": "1917",
        "specific_heat_capacity": null,
        "electron_configuration": "[Rn] 5f2 6d1 7s2",
        "display_row": 9,
        "display_column": 5
    }, {
        "atomic_number": 92,
        "name": "Uranium",
        "symbol": "U",
        "atomic_weight": 238,
        "period": 7,
        "group": 21,
        "phase": "solid",
        "most_stable_crystal": "orth",
        "type": "Actinide",
        "ionic_radius": 0.52,
        "atomic_radius": null,
        "electronegativity": 1.38,
        "first_ionization_potential": 6.1941,
        "density": 18.95,
        "melting_point": 1405.15,
        "boiling_point": 4404,
        "isotopes": 15,
        "discoverer": "Peligot",
        "year_of_discovery": "1841",
        "specific_heat_capacity": 0.116,
        "electron_configuration": "[Rn] 5f3 6d1 7s2",
        "display_row": 9,
        "display_column": 6
    }, {
        "atomic_number": 93,
        "name": "Neptunium",
        "symbol": "Np",
        "atomic_weight": 237,
        "period": 7,
        "group": 22,
        "phase": "artificial",
        "most_stable_crystal": "orth",
        "type": "Actinide",
        "ionic_radius": 0.75,
        "atomic_radius": null,
        "electronegativity": 1.36,
        "first_ionization_potential": 6.2657,
        "density": 20.45,
        "melting_point": 913.15,
        "boiling_point": 4273,
        "isotopes": 153,
        "discoverer": "McMillan and Abelson",
        "year_of_discovery": "1940",
        "specific_heat_capacity": null,
        "electron_configuration": "[Rn] 5f4 6d1 7s2",
        "display_row": 9,
        "display_column": 7
    }, {
        "atomic_number": 94,
        "name": "Plutonium",
        "symbol": "Pu",
        "atomic_weight": 244,
        "period": 7,
        "group": 23,
        "phase": "artificial",
        "most_stable_crystal": "mno",
        "type": "Actinide",
        "ionic_radius": 0.89,
        "atomic_radius": null,
        "electronegativity": 1.28,
        "first_ionization_potential": 6.0262,
        "density": 19.84,
        "melting_point": 913.15,
        "boiling_point": 3501,
        "isotopes": 163,
        "discoverer": "Seaborg et al.",
        "year_of_discovery": "1940",
        "specific_heat_capacity": null,
        "electron_configuration": "[Rn] 5f6 7s2",
        "display_row": 9,
        "display_column": 8
    }, {
        "atomic_number": 95,
        "name": "Americium",
        "symbol": "Am",
        "atomic_weight": 243,
        "period": 7,
        "group": 24,
        "phase": "artificial",
        "most_stable_crystal": "hex",
        "type": "Actinide",
        "ionic_radius": 0.98,
        "atomic_radius": null,
        "electronegativity": 1.3,
        "first_ionization_potential": 5.9738,
        "density": 13.69,
        "melting_point": 1267.15,
        "boiling_point": 2880,
        "isotopes": 133,
        "discoverer": "Seaborg et al.",
        "year_of_discovery": "1944",
        "specific_heat_capacity": null,
        "electron_configuration": "[Rn] 5f7 7s2",
        "display_row": 9,
        "display_column": 9
    }, {
        "atomic_number": 96,
        "name": "Curium",
        "symbol": "Cm",
        "atomic_weight": 247,
        "period": 7,
        "group": 25,
        "phase": "artificial",
        "most_stable_crystal": "hex",
        "type": "Actinide",
        "ionic_radius": 0.97,
        "atomic_radius": null,
        "electronegativity": 1.3,
        "first_ionization_potential": 5.9915,
        "density": 13.51,
        "melting_point": 1340.15,
        "boiling_point": 3383,
        "isotopes": 133,
        "discoverer": "Seaborg et al.",
        "year_of_discovery": "1944",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 9,
        "display_column": 10
    }, {
        "atomic_number": 97,
        "name": "Berkelium",
        "symbol": "Bk",
        "atomic_weight": 247,
        "period": 7,
        "group": 26,
        "phase": "artificial",
        "most_stable_crystal": "hex",
        "type": "Actinide",
        "ionic_radius": 0.95,
        "atomic_radius": null,
        "electronegativity": 1.3,
        "first_ionization_potential": 6.1979,
        "density": 14.79,
        "melting_point": 1259.15,
        "boiling_point": 983,
        "isotopes": 83,
        "discoverer": "Seaborg et al.",
        "year_of_discovery": "1949",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 9,
        "display_column": 11
    }, {
        "atomic_number": 98,
        "name": "Californium",
        "symbol": "Cf",
        "atomic_weight": 251,
        "period": 7,
        "group": 27,
        "phase": "artificial",
        "most_stable_crystal": "hex",
        "type": "Actinide",
        "ionic_radius": 0.93,
        "atomic_radius": null,
        "electronegativity": 1.3,
        "first_ionization_potential": 6.2817,
        "density": 15.1,
        "melting_point": 1925.15,
        "boiling_point": 1173,
        "isotopes": 123,
        "discoverer": "Seaborg et al.",
        "year_of_discovery": "1950",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 9,
        "display_column": 12
    }, {
        "atomic_number": 99,
        "name": "Einsteinium",
        "symbol": "Es",
        "atomic_weight": 252,
        "period": 7,
        "group": 28,
        "phase": "artificial",
        "most_stable_crystal": "hex",
        "type": "Actinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": 1.3,
        "first_ionization_potential": 6.42,
        "density": 13.5,
        "melting_point": 1133.15,
        "boiling_point": null,
        "isotopes": 123,
        "discoverer": "Ghiorso et al.",
        "year_of_discovery": "1952",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 9,
        "display_column": 13
    }, {
        "atomic_number": 100,
        "name": "Fermium",
        "symbol": "Fm",
        "atomic_weight": 257,
        "period": 7,
        "group": 29,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Actinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": 1.3,
        "first_ionization_potential": 6.5,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": 103,
        "discoverer": "Ghiorso et al.",
        "year_of_discovery": "1953",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 9,
        "display_column": 14
    }, {
        "atomic_number": 101,
        "name": "Mendelevium",
        "symbol": "Md",
        "atomic_weight": 258,
        "period": 7,
        "group": 30,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Actinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": 1.3,
        "first_ionization_potential": 6.58,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": 33,
        "discoverer": "Ghiorso et al.",
        "year_of_discovery": "1955",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 9,
        "display_column": 15
    }, {
        "atomic_number": 102,
        "name": "Nobelium",
        "symbol": "No",
        "atomic_weight": 259,
        "period": 7,
        "group": 31,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Actinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": 1.3,
        "first_ionization_potential": 6.65,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": 73,
        "discoverer": "Ghiorso et al.",
        "year_of_discovery": "1958",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 9,
        "display_column": 16
    }, {
        "atomic_number": 103,
        "name": "Lawrencium",
        "symbol": "Lr",
        "atomic_weight": 262,
        "period": 7,
        "group": 32,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Actinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": 203,
        "discoverer": "Ghiorso et al.",
        "year_of_discovery": "1961",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 9,
        "display_column": 17
    }, {
        "atomic_number": 104,
        "name": "Rutherfordium",
        "symbol": "Rf",
        "atomic_weight": 261,
        "period": 7,
        "group": 4,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Transactinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": 18.1,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "Ghiorso et al.",
        "year_of_discovery": "1969",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 4
    }, {
        "atomic_number": 105,
        "name": "Dubnium",
        "symbol": "Db",
        "atomic_weight": 262,
        "period": 7,
        "group": 5,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Transactinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": 39,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "Ghiorso et al.",
        "year_of_discovery": "1970",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 5
    }, {
        "atomic_number": 106,
        "name": "Seaborgium",
        "symbol": "Sg",
        "atomic_weight": 266,
        "period": 7,
        "group": 6,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Transactinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": 35,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "Ghiorso et al.",
        "year_of_discovery": "1974",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 6
    }, {
        "atomic_number": 107,
        "name": "Bohrium",
        "symbol": "Bh",
        "atomic_weight": 264,
        "period": 7,
        "group": 7,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Transactinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": 37,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "Armbruster and M�nzenberg",
        "year_of_discovery": "1981",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 7
    }, {
        "atomic_number": 108,
        "name": "Hassium",
        "symbol": "Hs",
        "atomic_weight": 267,
        "period": 7,
        "group": 8,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Transactinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": 41,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "Armbruster and M�nzenberg",
        "year_of_discovery": "1983",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 8
    }, {
        "atomic_number": 109,
        "name": "Meitnerium",
        "symbol": "Mt",
        "atomic_weight": 268,
        "period": 7,
        "group": 9,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Transactinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": 35,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "GSI, Darmstadt, West Germany",
        "year_of_discovery": "1982",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 9
    }, {
        "atomic_number": 110,
        "name": "Darmstadtium",
        "symbol": "Ds",
        "atomic_weight": 271,
        "period": 7,
        "group": 10,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Transactinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "",
        "year_of_discovery": "",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 10
    }, {
        "atomic_number": 111,
        "name": "Roentgenium",
        "symbol": "Rg",
        "atomic_weight": 272,
        "period": 7,
        "group": 11,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Transactinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "",
        "year_of_discovery": "",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 11
    }, {
        "atomic_number": 112,
        "name": "Copernicium",
        "symbol": "Cn",
        "atomic_weight": 285,
        "period": 7,
        "group": 12,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Transactinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "",
        "year_of_discovery": "",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 12
    }, {
        "atomic_number": 113,
        "name": "Nihonium",
        "symbol": "Nh",
        "atomic_weight": 284,
        "period": 7,
        "group": 13,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "",
        "year_of_discovery": "",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 13
    }, {
        "atomic_number": 114,
        "name": "Flerovium",
        "symbol": "Fl",
        "atomic_weight": 289,
        "period": 7,
        "group": 14,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Transactinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "",
        "year_of_discovery": "",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 14
    }, {
        "atomic_number": 115,
        "name": "Moscovium",
        "symbol": "Mv",
        "atomic_weight": 288,
        "period": 7,
        "group": 15,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "",
        "year_of_discovery": "",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 15
    }, {
        "atomic_number": 116,
        "name": "Livermorium",
        "symbol": "Lv",
        "atomic_weight": 292,
        "period": 7,
        "group": 16,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Transactinide",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "",
        "year_of_discovery": "",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 16
    }, {
        "atomic_number": 117,
        "name": "Tennessine",
        "symbol": "Ts",
        "atomic_weight": 295,
        "period": 7,
        "group": 17,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "",
        "year_of_discovery": "",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 17
    }, {
        "atomic_number": 118,
        "name": "Oganesson",
        "symbol": "Og",
        "atomic_weight": 294,
        "period": 7,
        "group": 18,
        "phase": "artificial",
        "most_stable_crystal": "",
        "type": "Noble Gas",
        "ionic_radius": null,
        "atomic_radius": null,
        "electronegativity": null,
        "first_ionization_potential": null,
        "density": null,
        "melting_point": null,
        "boiling_point": null,
        "isotopes": null,
        "discoverer": "",
        "year_of_discovery": "",
        "specific_heat_capacity": null,
        "electron_configuration": "",
        "display_row": 7,
        "display_column": 18
    }]
}
