Q2 / 160 · AP EAMCET 2021 (24 Aug Shift 2) · Chemistry

To which orbital among the following may an electron having zero angular momentum belong?

Correct answer
A
$3 s$
B
$3 p$
C
$3 d$
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.

Hence, the correct answer is option: 'A'.

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