Q. The number of radial nodes of $3s$ and $2p$-orbitals are respectively

A) 2, 0
B) 0, 2
C) 1, 2
D) 2, 11
Explanation

(a)
Number of radial nodes $= (n - l - 1)$
For $3s,\ n = 3,\ l = 0$(number of radial node=2)
For $2p,n = 2,\ l = 1$(number of radial node=0)

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.