B Prevalence of nuclear decays accompanied by gamma emission

[Petr Matas]

Some alpha or beta decays produce an excited daughter nucleus, which typically immediately emits one or more gama rays to reach a ground state. This is the case for beta decay of Co-60 or Na-24 for example. While the table of cobalt isotopes on Wikipedia mentions the gamma emission, the one for sodium does not. Do most isotopes decay by modes accompanied by the gamma (so we do not bother mentioning it in the tables and tacitly expect part of the decay energy to be emitted as gamma), or is it rather rare?

 

[gleem]

Gamma emission occurs in most nuclear decays.

see for yourself. https://nds.iaea.org/relnsd/vcharthtml/VChartHTML.html