### Nodes

Posted:

**Fri Oct 07, 2016 8:53 pm**How do you determine how many nodes are in each subshell? Is there an equation to determine the amount of nodes per each orbital?

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=20&t=15737

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Posted: **Fri Oct 07, 2016 8:53 pm**

How do you determine how many nodes are in each subshell? Is there an equation to determine the amount of nodes per each orbital?

Posted: **Tue Oct 11, 2016 7:16 pm**

There are two types of nodes: angular nodes and radial nodes. Angular nodes are surfaces where there is no electron density, and radial nodes are spherical shells where there is no electron density. In order to determine the number of nodes total the equation would be n-1. The number of angular nodes is equal to l. To determine how many radial nodes there are, the equation would be n-l-1.

Posted: **Thu Oct 20, 2016 8:55 pm**

How many nodal planes are in the p orbital?

Posted: **Thu Oct 20, 2016 10:38 pm**

The p orbital has 1 nodal plane since l = 1. It looks like an hourglass, with the nodal plane through the center.