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The number of radial nodes of $3 \mathrm{~s}$ and $2 p$ orbitals respectively are
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The correct answer is:
2,0
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
$$
=2-1-1=0
$$
$$
=n-I-1
$$
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
$$
=2-1-1=0
$$
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