An electron is in 4f orbital. What possible values for quantum numbers, n,l,m and s can it have ?

Explanation

Since the electron is in a 4f orbital, the value of the principle quantum number, n = 4
For the f-orbital, the secondary quantum number, l = 3
The values of the magnetic quantum (m) are `-l " to " +l` including zero. Therefore, when l = 3, m has seven values, i.e., `-3, -2, -1, 0, +1, +2, and 3`
For each value of m, the spin quantum number, s has two values, i.e., `s = +1//2 and s = -1//2`