Term: isotopes
https://doi.org/10.1351/goldbook.I03331

Definition:
Nuclides having the same atomic number but different mass numbers.

Related Terms:
1) nuclides (http://doi.org/10.1351/goldbook.N04257).
2) atomic number (http://doi.org/10.1351/goldbook.A00499).
3) mass numbers (http://doi.org/10.1351/goldbook.M03726).

Source: PAC, 1994, 66, 2513. 'Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)' on page 2520 (https://doi.org/10.1351/pac199466122513)

Citation: 'isotopes' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.I03331

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