Question

Which of the following sets of quantum
numbers are not possible?
(A) n = 3,l = 2, m = 0, s =-1/2

(B) n = 4,l = 2, m = -1, s = -1/2

(C) n = 2,l = 0, m = -1,s = +1/2

(D) n= 3,l = 1, m = -1,s =-1/2
​

Answer 1

Answer:

(i) n=3l=0,m=0s=

2

+1

(ii) 3sn>l

n



=l

So, not possible.

(iii) 4f possible.

(iv) Not possible

For s,m=0(always)

(v) not possible

l=2 i.e d cannot have m=−3

m for d is −l to +l i.e −2 to +2

So, the correct option is C