Question

Radial nodes present in 2s and 2p-orbitals are respectively

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

Answer 1

Answer: (B)

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