# How many spherical nodes are in a #3d_(xy)# orbital?

##### 1 Answer

May 20, 2017

A spherical node is otherwise known as a **radial node**. Radial nodes are given by

#n - l - 1# ,where

#n - 1# is the total number of nodes, and#l# is the number of angular nodes. (Ordinarily,#n# is the principal quantum number, and#l# is the angular momentum quantum number.)

So, the number of radial nodes is:

#color(blue)(n - l - 1)#

#= 3 - 2 - 1 = color(blue)(0)#

Hence, there are **zero** spherical nodes in the

How many angular nodes are there?