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

Options

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

Answer

C

Explanation

`Cl(Z = 17) : [Ne]^(10) 3s^(2) 3p_(x)^(2) 3p_(y)^(2) 3p_(z)^(1)`
Unpaired electron : `3p_(z)^(1)`
`:. n = 3, m = 1, m = 1, s = +1//2` can be a correct set.