Title: nuclidic mass
Long Title: IUPAC Gold Book - nuclidic mass
DOI: 10.1351/goldbook.N04258
Status: current

Definition
The rest mass of a nuclide expressed in atomic mass units.

Related Terms
- atomic mass units: https://goldbook.iupac.org//terms/view/A00498
- nuclide: https://goldbook.iupac.org//terms/view/N04257

Source
- PAC, 1982, 54, 1533. 'Glossary of terms used in nuclear analytical chemistry (Provisional)' on page 1547 (https://doi.org/10.1351/pac198254081533)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/N04258/html
- json: https://goldbook.iupac.org/terms/view/N04258/json
- xml: https://goldbook.iupac.org/terms/view/N04258/xml

Citation: Citation: 'nuclidic mass' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.N04258
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Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.
Accessed: 2026-05-18T04:51:56+00:00