interface StableIsotope {
    /** Element name (e.g., "Carbon"). */
    name: string;
    /** Exact mass of the isotope in Da. */
    mass: number;
    /** Element symbol (e.g., "C"). */
    symbol: string;
    /** Whether this is the most abundant stable isotope of the element. */
    mostAbundant: boolean;
    /** Difference in neutron count relative to the most abundant isotope (e.g., +1 for 13C, -1 for 10B). */
    deltaNeutrons: number;
}
export declare const stableIsotopesObject: Record<string, StableIsotope | undefined>;
export {};
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