What happens to the atomic number (Z) and the mass number (A) when a nucleus emits a gamma ray?
A) Z increases by 1; A is unchanged.
B) Z is unchanged; A is unchanged.
C) Z decreases by 1; A is unchanged.
D) Z decreases by 2; A decreases by 4.

Question

Quizplus · Accepted Answer

When a nucleus emits a gamma ray, it is releasing energy without changing its atomic number (Z) or mass number (A). Gamma radiation involves the emission of high-energy photons and does not involve the loss or gain of protons or neutrons in the nucleus.

What Happens to the Atomic Number (Z) and the Mass