Consider the following sets of quantum number n l m s (i) 3 0 0 + 1 / 2 (ii) 2 2 1 + 1 / 2 (iii) 4 3 - 2 - 1 / 2 (iv) 1 0 - 1 - 1 / 2 (v) 3 2 3 + 1 / 2 Which of the following sets of quantum number is not possible?

Question

Consider the following sets of quantum number n l m s (i) 3 0 0 + 1 / 2 (ii) 2 2 1 + 1 / 2 (iii) 4 3 - 2 - 1 / 2 (iv) 1 0 - 1 - 1 / 2 (v) 3 2 3 + 1 / 2 Which of the following sets of quantum number is not possible?, (i), (ii), (iii) and (iv), (ii), (iv) and (v), (i) and (iii), (ii), (iii) and (iv)

MARKS App · Accepted Answer

( i ) represents an electron in 3s orbital. ( i i ) is not possible as value of l varies from 0, 1, .... (n – 1). ( i i i ) represents an electron in 4f orbital. ( i v ) is not possible as value of m varies from - l … + l . ( v ) is not possible as value of m varies from - l … + l , it can never be greater than l.

	n	l	m	s
(i)	3	0	0	$+ 1 / 2$
(ii)	2	2	1	$+ 1 / 2$
(iii)	4	3	$- 2$	$- 1 / 2$
(iv)	1	0	$- 1$	$- 1 / 2$
(v)	3	2	3	$+ 1 / 2$

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