Question

Which of the following processes represents a $\gamma -decay$?

• A. ${}^A{X}_Z+\gamma {\to }^A{X}_{Z-1}+a+b$
• B. ${}^A{X}_Z{+}^1{n}_0{\to }^{A-3}{X}_{Z-2}+c$
• C. ${}^A{X}_Z{\to }^A{X}_Z+f$
• D. ${}^A{X}_Z+e_{-1}{\to }^A{X}_{Z-1}+g$

Answer 1

Answer: (C)

${}^A{X}_Z{\to }^A{X}_Z+f$

Gamma rays have no mass and charge.
They are packets of energy /photons.
Thus $\gamma$ decay cannot result in change of mass no. or atomic no.