Question

When a gamma ray is emitted from the nucleus of an atom:

it reduces the overall energy of the nucleus

it increases the overall energy of the nucleus

it causes a charge imbalance in the nucleus

it causes changes in the electronic structure outside of the nucleus

Answer 1

it reduces the overall energy of the nucleus

Answer 2

I would rather go with the 3rd answer ! It's either addition of a proton or an emission of the proton ! SO it causes a charge unbalance in the nucleus ! That's for sure !