4. What is the maximum no. of electrons that can be associated with the following set of quantum numbers?
n=4, l=1, m=-1
a) 10
b) 6
d) 2
c) 4​

d) 2

Explanation:

We are given;

n = 4, l = 1, m = -1

We can tell that is is an orbital with sub shell as 3P.

Now, from Paul's exclusion principle, each orbital will have maximum of 2 electrons of each π with a spin of +½ and -½.

Since the maximum is seen to be 2, then option D is correct.