Question

Total number of radial nodes present in $3s$ and $2p$ respectively, are:

• A. $1,2$
• B. $0,2$
• C. $3,2$
• D. $2,0$

Answer 1

The correct option is D $2,0$

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