Question

The atomic number of a radioactive element is not changed when it emits

• A. $\alpha$-radiations
• B. $\beta$-radiations
• C. $\gamma$-radiations
• D. all the above

Answer 1

Answer: (C)

$\gamma$-radiations

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