Title: hot atom
Long Title: IUPAC Gold Book - hot atom
DOI: 10.1351/goldbook.H02861
Status: current

Definition
An atom in an excited energy state or having kinetic energy above the ambient thermal level, usually as a result of nuclear processes.

Related Term
- kinetic energy: https://goldbook.iupac.org//terms/view/K03402

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

Other Outputs
- html: https://goldbook.iupac.org/terms/view/H02861/html
- json: https://goldbook.iupac.org/terms/view/H02861/json
- xml: https://goldbook.iupac.org/terms/view/H02861/xml

Citation: Citation: 'hot atom' 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.H02861
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Accessed: 2026-08-03T04:37:31+00:00