Question

If the subsidiary quantum number of a sub energy level is 4, the maximum and minimum non-zero values of the magnitudes of total spin respectively are:

• A. 9/2, 1/2
• B. 9, 1
• C. 5/2, 1/2
• D. 5/2, 1

Answer 1

The correct option is A 9/2, 1/2

When $l=4$, the number of degenerate orbitals $=2l+1=2\times 4+1=9$

The maximum of total spin $9\times \frac{1}{2}$
and minimum total non-zero spin= $\frac{1}{2}$