Q. For a nucleus to be stable, the correct relation between neutron number $N$ and proton number $Z$ is
A) $N > Z$
B) $N = Z$
C) $N < Z$
D) $N \geq Z$
Explanation
(d) For stability in case of lighter nuclei $\frac{N}{Z} = 1$ and for heavier nuclei $\frac{N}{Z} > 1$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.