The correct set of quantum number for the unpaired electron of chlorine atom is

Options

A. `2, 0, 0, +(1)/(2)`
B. `3, 0, 0, +-(1)/(2)`
C. `2,1 , -1,+(1)/(2)`
D. `3, 1, 1, +-(1)/(2)`

Answer

D

Explanation

Electronic configuration of CI (Z = 17) atom:
`1s^(2)2s^(2) 2p^(6) 3s^(2) 3p^(5)`
So, the unpaired electron of Cl atom is in 3p-orbital.