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IUPAC - isomeric state (I03292)

isomeric state

in nuclear chemistry
https://doi.org/10.1351/goldbook.I03292
A nuclear state having a @M03780@ long enough to be observed.
Source:
PAC, 1982, 54, 1533. (Glossary of terms used in nuclear analytical chemistry (Provisional)) on page 1545 [Terms] [Paper]