Question

The angular momentum of an electron is zero. In which orbital may it be present?

• A. $2s$
• B. $2p$
• C. $3d$
• D. $4f$

Answer 1

Answer: (A)

For $2s,l=0$. Hence, angular momentum $=\sqrt{l(l+1)}\frac{h}{2\pi }=0$