Which of the following `"is"//"are"` correct when a nuclide of mass number `(A)` and atomic number `(Z)` undergoes radioactive process?

Options

A. Both `A` and `Z` decreases, the process is called `alpha`-decay.
B. A remains unchanged and `Z` decreases by 1. The process is called `beta^(o+)` or positron decay of `K-`electron capture.
C. Both `A` and `Z` remain unchanged, the process is called `gamma`-decay.
D. Both `A` and `Z` increase, the process is called nuclear isomerism.

Answer

A, B, C