In what type of radioactive decay are the mass numbers of the parent and daughter nuclei the same?
A)alpha
B)beta
C)gamma
D)both alpha and beta
E)both beta and gamma

Question

Quizplus · Accepted Answer

In gamma decay, there is no emission of particles, only a release of energy in the form of photons. Therefore, there is no change in the mass number of the nucleus, and the mass numbers of the parent and daughter nuclei are the same.

In What Type of Radioactive Decay Are the Mass Numbers