Which one of the following sets of quantum numbers can correctly represent a 3p orbital?

(A) (n = 3 l = 1, ml = 2)

(B)(n = 1, l = 3, ml = 3)

(C) (n = 3, l = 2, ml = 1)

(D) (n = 3, l = 1, ml = -1)

Correct option is (D) (n = 3, l = 1, ml = -1). Explanation: This is because a 3p orbital must have n = 3.

That eliminates Option (b), because it has n = 1

A p orbital must have l = 1.

That eliminates Options (c), and (e), because they have l = 2, and 0

The mₗ is required to be an integer satisfying −l ≤ m ≤ l, so mₗ could be any of −1, 0, or +1.

That eliminates Option (a), because they have mₗ = 2