For , the possible sets of is — Atomic Structure Chemistry Question

💡 Solution & Explanation

For $n=3$, $l = (3-1)=2$ or $l=(3-3)=0$. For $l=2$, $j = 5/2$ (gives $2(5/2)+1 = 6$ values for $m$) and $j = 3/2$ (gives $2(3/2)+1 = 4$ values for $m$). For $l=0$, $j = 1/2$ only (gives $2(1/2)+1 = 2$ values for $m$). Total sets $= 6 + 4 + 2 = 12$. Therefore, correct answer is C.