Question

What are the values of the orbital angular momentum of an electron in the orbitals $1s, 3s, 3d$ and $2p$ ?

• A. $ 0, 0, \frac{h}{2\pi}\sqrt{6,} \frac{h}{2\pi}\sqrt{2}$
• B. $ 1, 1, \frac{h}{2\pi}\sqrt{4,} \frac{h}{2\pi}\sqrt{2}$
• C. $ 0, 1, \frac{h}{2\pi}\sqrt{6,} \frac{h}{2\pi}\sqrt{3}$
• D. $ 0, 0, \frac{h}{2\pi}\sqrt{20,} \frac{h}{2\pi}\sqrt{6}$

Answer 1

Answer: (A)

From$\sqrt{\ell\left(\ell+1\right)} \frac{h}{2\pi} $
Values of 1 for $1s, 2s, 3d$ and $2p$ are $0 ,0 ,2 ,1$
$ 0, 0, \frac{h}{2\pi}\sqrt{6,} \frac{h}{2\pi}\sqrt{2}$