Q. The first ionisation potential is maximum for
A) B
B) N
C) O
D) Be
Explanation
(b)
Ionisation potential generally increases in a period from left to right but $1E_{1}\ of\ N_{2}$is greater than that of $O_{2}$. It is due to the more stable (half-filled orbitals) configurations of N.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.