Question

The plots of radial distribution functions for various orbitals of hydrogen atom against 'r' are given below:

The correct plot for $3s$ orbital is:

• A. 4
• B. 2
• C. 1
• D. 3

Answer 1

The correct option is A 4

$\text{Number of radial nodes}=n-l-1$

For $3s$ orbital, $n=3,l=0$

$\text{Number of radial nodes}=3-0-1=2$

It is correctly represented in graph 4.