Question

In which radioactive disintegration, the neutron dissociates into proton and electron?

• A. $\alpha -emission$
• B. $\beta -emission$
• C. $\gamma -emission$
• D. $Positronemission$

Answer 1

The correct option is B

$\beta -emission$

In $\beta$ - decay, a neutron dissociates into proton and electron. In $\beta$ - decay, the daughter nucleus atomic number has to increase by $1$ and the mass number remains the same.
${}_x{A}^y\to {}_{x+1}{B}^y+{}_{-1}{e}^0$