Question

Examine the following equations.

A. 23490Th→23491Pa+0−1e+γ

B. 60∗27Co→6027Co+γ

C. 23490Th→23088Ra+42He

D. 146C→147N+0−1e

Which equation or equations represent gamma decay?

A
A and B
C
D
B
A and D
C and D

Answer 1

only B represent gamma decay as there is no change in change mass,atomic no.in fact there is no new element formed.

Answer 2

The correct answer to the question is only equation B.

B.60∗27Co→6027Co+γ

This is the only equation that represents gamma decay.

This is so because here, no new element is formed.

Moreover, there is no change in the mass and atomic number.

A gamma decay occurs when there is too much of energy to be stable and the nucleus occurs in an excited state.