export declare const elements: { 'h': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'he': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': string; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'li': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'be': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'b': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'c': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'n': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'o': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'f': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ne': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': string; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'na': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'mg': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'al': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'si': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'p': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 's': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'cl': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ar': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': string; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'k': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ca': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'sc': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ti': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'v': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'cr': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'mn': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'fe': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'co': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ni': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'cu': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'zn': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ga': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ge': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'as': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'se': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'br': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'kr': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'rb': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'sr': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'y': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'zr': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'nb': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'mo': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'tc': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': string; 'melting-point': number; 'boiling-point': number; }; 'ru': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'rh': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'pd': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ag': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'cd': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'in': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'sn': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'sb': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'te': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'i': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'xe': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'cs': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ba': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': string; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'hf': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ta': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'w': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 're': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'os': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ir': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'pt': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'au': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'hg': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'tl': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'pb': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'bi': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'po': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'at': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'rn': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'fr': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'ra': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'rf': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'db': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'sg': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'bh': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'hs': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'mt': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'ds': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'rg': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'cn': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'nh': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'fl': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'mc': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'lv': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'ts': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'og': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': string; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'la': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ce': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'pr': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'nd': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'pm': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': string; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'sm': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'eu': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'gd': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'tb': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': string; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'dy': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ho': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'er': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'tm': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'yb': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': string; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'lu': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'ac': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'th': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'pa': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'u': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'np': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'pu': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'am': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'cm': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': string; 'atomic-weight': number; 'melting-point': string; 'boiling-point': string; }; 'bk': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'cf': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'es': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': number; }; 'fm': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': string; }; 'md': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': string; }; 'no': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': string; }; 'lr': { 'symbol': string; 'name': string; 'group': string; 'atomic-number': number; 'electron-configuration': { 's': number; 'p': number; 'd': number; 'f': number; }[]; 'electronegativity': number; 'atomic-weight': number; 'melting-point': number; 'boiling-point': string; }; };