Question

Which one of the following set of quantum
numbers is not possible for 4p electron?
(a) n = 4, l = 1, m = –1, m???? = + 1
2
(b) n = 4, l = 1, m = 0, m???? = + 1
2
(c) n = 4, l = 1, m = 2, m???? = + 1
2
(d) n = 4, l = 1, m = –1, m???? = –1
2

Answer 1

$\bf\large\underline\pink{Answer:-}$

a)

Answer 2

(c) n = 4, l = 1, m = 2, s = + 1/2

Explanation:

Value of m varies from -l to +l. So Options A, B and D are within the range.

For l = 1, m = 2 is not possible. It exceeds +l. So it is not possible.

Option C is the answer.