JEE Main 2022 — Structure Of Atom Question with Solution

For A,

Given n = 3 and l = 3

but we know maximum value of l = n $$-$$ 1.

$$\therefore$$ l can't be equal to n.

So, Set A of quantum numbers is not possible.

For B,

Given n = 3, l = 2, m = $$-$$ 2

Here, l = 2 which follow the rule l = n $$-$$ 1.

And we know possible value of m is $$-$$ l to + l.

here possible value of m = $$-$$2 to +2

$$\therefore$$ This Set B is valid set of quantum numbers.

For C,

Given n = 2, l = 1, m = +1

Here l = 1 which follows the rule l = n $$-$$ 1.

For l = 1 possible value of m = $$-$$1 to +1

Here m = +1. So value of m is valid.

$$\therefore$$ Set C is valid set of quantum numbers.

For D,

Given n = 2, l = 2, m = +2

l = 2 does not follow the rule l = n $$-$$ 1 rule.

$$\therefore$$ Set D is not valid set of quantum numbers.