Question

The number of radial nodes in 3s and 2p respectively are:-

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

Answer 1

The correct option is A 2 and 0

Number of radial nodes = $n-l-1$

For 3s, radial node = $3-0-1=2$
For 2p, radial node = $2-1-1=0$