Which one of the following sets of the quantum numbers is not possible for a 4p electron?

Options

A. `n=4,1=1,m=+1,s=+1/2`
B. `n=4,1=1,m=0,s=+1/2`
C. `n=4,1=1,m=2,s=+1/2`
D. `n=4,1=1,m=1,s=-1/2`

Answer

c

Explanation

For 4p electron,
n=4
l=1
m--1,0,+1
`s=+1/2 or -1/2 (+1/2,+1/2,+1/2)`
bove quantum number.s do not match with option (c)