Change in chemical potential energy from nuclear decay

[cahill]

TL;DR Summary

eg krypton-81 to bromine-81

I have been amateur reading about beta decay. The example given for electron capture was krypton-81 into bromine-81. Going from a noble gas to a halogen gives rise to a big change in chemical potential energy. How is this energy accounted for in the equations of the reactant particles and nuclear binding energy? Sorry if this is a dumb question but I am interested to know.

 

[mfb]

Chemical bounds are of the order of 1 eV, they are negligible for nuclear transitions. If that level of precision is needed then isolated atoms are used for the definition.

 

[cahill]

ok thanks