Question

Which of the following processes represents a gamma-decay only ?

• 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. ${}^A{X}_Z+c_{-1}{\to }^A{X}_{Z-1}+g$

Answer 1

The correct option is C ${}^A{X}_Z{\to }^A{X}_Z+f$

During the emission of a gamma radiation, both the mass number and the atomic number remain the same. Hence the correct choice is C.