Select all of the following sets of numbers that are not allowed sets of quantum numbers (n, l, ml, ms).

Question

A. (2, 1, −2, 1/2)

B. (1, 1, 1, 1/2)

C. (2, 0, −1, −3/2)

D. (2, 1, −1, 1/2)

E.(3, 2, −2, −1/2)

The more I think about it, I'm pretty sure all of them are wrong, but I want to be sure.

Answer 1

A). incorrect since if l = 1, ml cannot = 2

B). Incorrect since if n = 1, l cannot = 1

C). Incorrect since if l = 0, ml cannot = -1

D). Correct. n =2 and l = 1 and ml can be -1 to +1 and ms can be + or - 1/2

E). Correct. n = 3 and l = 2 and ml can be -2 to +2 and ms can be + or - 1/2

So, I would say that the sets that are NOT allowed would be A, B, and C.