Question

A neutron dissociates into a proton and an electron along with an anti-neutrino, in ______ emission.

• A. $\gamma$
• B. $\text{X}$
• C. $\alpha$
• D. $\beta$

Answer 1

The correct option is D $\beta$

In a $\beta$ - emission, a neutron dissociates itself into a proton and an electron. While emitting a $\beta$ - particle, the total number of nucleons in nucleus an atom remains the same, but the number of neutrons is decreased by one and the number of protons is increased by one. Also, some energy along with an anti-neutrino ($\stackrel{\_}{\upsilon }$) is emitted in the process. The reaction is as follows:

$AZX\to AZ+1Y+0-1e\left(\beta \right)$

$+\stackrel{\_}{\upsilon }+\mathrm{Energy}$