Question

$A_Z^M\to B_{Z-1}^{M-12}$
The number of $\alpha$ and $\beta$ particles emitted in the above conversion is

• A. $2\alpha ,4\beta$
• B. $5\alpha ,6\beta$
• C. $\alpha ,3\beta$
• D. $3\alpha ,5\beta$

Answer 1

The correct option is D $3\alpha ,5\beta$

$3\alpha ,5\beta$
Each loss of $\alpha$-particle will decrease mass number by 4 and atomic number by 2.