First slide
Quantum Numbers
Question

How many of the following set of quantum numbers are not the allowed set of quantum numbers

A) n = 4; l = 2; m =-1; s = -½

B) n = 2; l = 2; m = -3; s = +½

C) n = 5; l = 3; m = +4; s = +½

D) n = 2; l = 0; m = 0; s = -½

Easy
Solution

B) not allowed because maximum values of ‘l’ is equal to (n - 1)

C) not allowed because the values of ‘m’ range from ‘-l’ to ‘+l’

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