To which orbital among the following may an electron having zero angular momentum belong?
To which orbital among the following may an electron having zero angular momentum belong?
$3 s$
$3 p$
$3 d$
$4 f$
Solution
We know,
Angular momentum of an electron in particular orbital will be
$=\sqrt{l(l+1)} \frac{h}{2 \pi}$
If angular momentum $=0$
then, $l(l+l)=0$
So, $l$ must be equal to zero
$s$-orbital has $l=0$
$\therefore 3 s$ is correct answer.