Q. Atomic number of a nucleus is $Z$ and atomic mass is $M$. The number of neutron is
A) $M - Z$
B) $M$
C) $Z$
D) $M + Z$
Explanation
(a) $N = M - Z =$ Total no. of nucleons – no. of protons
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.