Question

Which of the following set of quantum number is not possible? A) n=3, I=2, m=-1, s= -1/2 B) n=4, I=2, m= -2, s= +1/2 C) n=3, I=1, m=2, s= -1/2 D) n=4, I=1, m=1, s= +1/2

Answer 1

Answer:

C) n=3, I=1, m=2, s= -1/2

Explanation:

m = 2l + 1

m = 2 × 2 + 1

=4 + 1

= 5

∴ possible values of m of l = 2 are -2, -1, 0, 1, 2

if we see option (c)n=3, I=1, m=2, s= -1/2 for l = 1 possible values of m are

-1, 0, 1 so m= 2 is not possible.