Question $5$

How many different quantum states in the three$-$dimensional hydrogen atom have a principal quantum number $\backslash (\backslash$mathrm$\{$n$\}=4\backslash )$ and orbital angular momentum quantum number $\backslash (\backslash$mathrm$\{$I$\}=3\backslash )?$

$5$

$1$

$2$

$14$

$4$

$6$

$3$

$10$

$7$