Question

The number of radial nodes of $4s$ and $3p$ respectively, are:

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

Answer 1

The correct option is D $3,1$

number of radial nodes $=n-l-1$
For $4s=4-0-1=3$
For $3p=3-1-1=1$