Q. The correct order of ionisation energy for comparing carbon, nitrogen and oxygen is
A) C < N > O
B) C > N < O
C) C > N > O
D) C < N < O
Explanation
(a)
Nitrogen has more ionisation potential than carbon and oxygen because its outermost orbit is half-filled. So the order is C < N > O
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.