Q. Which of the following atoms has same number of protons and neutrons in its nucleus?
A) Carbon
B) Deuterium
C) Tritium
D) Nitrogen
Explanation
(b)
Deuterium is $\ _{1}H^{2}$ ($ie$, have 1 proton and 1 neutron.)
($\therefore$ C may be $\ _{6}C^{12}\ or\ \ _{6}C^{14}$. Similar is true for N.)
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.