Question

Consider the following radioactive decay.

${}_Z^A{X}^{\ast }{\to }_Z^{A}X+k$

Then $k$ will be :

• A. $\alpha particle$
• B. $\beta particle$
• C. $\gamma particle$
• D. None of the above

Answer 1

The correct option is C $\gamma particle$

As the $\gamma$ radiations are chargeless or massless so, there is no change in mass number or Atomic number. As in this reaction, there is no change in Atomic number or the mass number, so this is $\gamma$-emission.