The correct set of quantum numbers (n, l and m) respectively of the unpaired electron of chloine atom is

Options

A. 2,1,0
B. 2,1,1
C. 3,1,1
D. 3,2,1

Answer

C

Explanation

`Cl (Z = 17) : 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p_(x)^(2) 3p_(y)^(2) 3p_(z)^(1)1s^(2) 2s^(2) 2p_(x)^(2) 2p_(y)^(1) 2p_(z)^(1)`
`:.` For the unpaired electron
n = 3, l = 1, m = -1, 0 or +1