The number of radial nodes of $3 \mathrm{~s}$ and $2 p$ orbitals respectively are
The number of radial nodes of $3 \mathrm{~s}$ and $2 p$ orbitals respectively are
0,2
2,0
1,2
2,1
Solution
Number of spherical/radial nodes in any orbital
$
=n-I-1
$
For $s=$ orbitals, $I=0$.
$\therefore$ Number of radial nodes in 3s-orbital
$
=3-0-1=2
$
For $p$ - orbitals, $I=1$
$\therefore \quad$ Number of radial nodes in $2 p$-orbitals
$
=2-1-1=0
$