radioactivity
The property of certain
nuclides
showing
radioactive decay
.
Source:
PAC, 1994,
66
, 2513
(Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994))
on page 2523
PAC, 1996,
68
, 957
(Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996))
on page 988
Green Book, 2nd ed., p. 22