Question

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

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

Answer 1

Answer: (A)

$0,0\sqrt{6}\hslash,\sqrt{2}\hslash$

Answer 2

For 1s, 3s, 3d and 2p orbital, l = 0, 0, 2, 1 respectively.

Orbital angular momentum $= \sqrt{\mathcal{l}\left( \mathcal{l} + 1 \right)}\hslash.$