Question

The electron emitted in β – radiation originates from where?

(a) Inner orbits of atoms

(b) Free electrons existing in nuclei

(c) The decay of a neutron in nuclei

(d) Photon escaping from the nucleus

I got this question in my homework.

The doubt is from Nucleus topic in chapter Nucleus of Physics – Class 12

Answer 1

Right option is (c) The decay of a neutron in nuclei

The best I can explain: In β-emission, a neutron of nucleus decays into a proton and a β-particle.

The reaction given as:

0n^1 ➔ 1H^2 + -1e^0.