Q. The correct set of quantum numbers ($n,\ l\ and\ m$ respectively) for the unpaired electron of chlorine atom is
A) 2, 1, 0
B) 2, 1, 1
C) 3, 1, 1
D) 3, 2, 1
Explanation
(c)
For chlorine atom,
electronic configuration
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ = 1s^{2},2s^{2},2p^{6},3s^{2},3p^{5}$
For $3p^{5}$,
$n = 3,\ l = 1,\ m = - 1,\ 0,\ + 1$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.