Question:
A certain orbital has $n=4$ and $m_{L}=-3$. The number of radial nodes in this orbital is (Round off to the Nearest Integer).
Solution:
$\mathrm{n}=4$ and $\mathrm{m}_{\ell}=-3$
Hence, $\ell$ value must be 3 .
Now, number of radial nodes $=\mathrm{n}-\ell-1$
$=4-3-1=0$