Question

1. (2) Which quantum state can not exist?

A
(1, 0, 0, 1/2)
B
(2, 0, 0, -1/2)
c
(2, 1, 0, 1/2)
D
(2,0, 1, -1/2)

Answer 1

D

Step-by-step explanation:

Reason being that if the principal quantum number is 2, the azimuthal quantum number can either be 0 or 1, and in this case it's 0. Since the azimuthal is 0 the magnetic quantum number must definitely be 0, not 1.