For a @R05116@: the @P04855@ in unit time for the decay of one of its nuclei by one of several modes of decay.
Source: PAC, 1982, 54, 1533. (Glossary of terms used in nuclear analytical chemistry (Provisional)) on page 1547 [Terms] [Paper]
Citation: 'partial decay constant' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.P04410 RISBibTexEndNote