Which orbital among the following has zero radial nodes and 2 angular nodes?
Which orbital among the following has zero radial nodes and 2 angular nodes?
$4 \mathrm{~s}$
$3 d$
$2 p$
$5 \mathrm{~s}$
Solution
Two angular nodes are found in $d$-orbital.
Number of radial nodes $=(n-l-1)$
So, for $3 d$.
$
n=3, l=2
$
$\because$ Number of angular nodes $=l=2$
$
\begin{aligned}
\text { Number of radial nodes } & =n-l-1 \\
& =3-2-1=0
\end{aligned}
$
So, $3 d$-orbital has zero radial node and 2 angular nodes