# How does 2s orbital differ from 1s?

##### 1 Answer

May 28, 2018

A

The **number of total nodes** is

#n-1# ,where

#n# is the principal quantum number (#n = 1, 2, 3, . . . # ).

The number of angular nodes is given by **number of radial nodes** is

#n - l - 1# .

But for **one more** node, and it is of the **radial** kind.

Knowing that, if the following radial distribution functions consist of either the

*HINT: if the radial part of the wave function,* *goes to zero, so does the radial probability density, which is proportional to*