Question

Which of the quantum number is/are not
allowed?
1. n=3, 1=2, m=0, s=+1/2
2. n=2, 1=2, m=-1, s=-1/2
3. n=3, I=0, m=0, s=+1/2
4. n=5, I=2, m=-1, s=-1/2​

Answer 1

Explanation:

A) l value never be 3 for the n value 3. Because the 3rd shell is not having d orbital (l value o,1,2,3 indicates s,p,d & f orbital). So its wrong.

B) The electron belongs to 3d

x

1

.

C) m value never be +2 for the l value 1 . Because m Value must be +l to −l.

D) The electron belongs to 3s

1