Q. During the $\beta - decay$
A) An atomic electron is ejected
B) An electron, already present within the nucleus, is ejected.
C) A proton in the nucleus decays emitting an electron
D) A neutron in the nucleus decays emitting an electron
Explanation
(d) In $\beta$-decay a neutron is transformed into a proton and an electron and an antineutrino is emitted.
$\ \ \ \ \ \ \ \ \ \ n^{0} \rightarrow p + e^{-} + v\ \overline{}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.