Which of the following is a correct set of quantum numbers for an electron in a 3d orbital?
A) n = 3, l = 0, ml = -1
B) n = 3, l = 1, ml = +3
C) n = 3, l = 2, ml = 3
D) n = 3, l = 3, ml = +2
E) n = 3, l = 2, ml = -2

Question

Quizplus · Accepted Answer

The principal quantum number, n, is 3 because the electron is in a 3d orbital. The angular momentum quantum number, l, is 2 because d orbitals have l values of 2. The magnetic quantum number, ml, can take on integer values from -l to +l, so for a 3d orbital, ml can be -2, -1, 0, 1, or 2. Therefore, the correct set of quantum numbers is 3, 2, -2, which is option E.

Which of the Following Is a Correct Set of Quantum