Question

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

• A. 2, 0
• B. 0, 2
• C. 1, 2
• D. 2, 1

Answer 1

The correct option is A 2, 0

Number of radial nodes $=(n-l-1)$
For $3s:n=3,l=0$
Number of radial nodes = 2
For $2p:n=2,l=1$
Number of radial nodes = 0