## Nodes

Jessica Beroukhim 3K
Posts: 21
Joined: Fri Sep 29, 2017 7:07 am

### Nodes

Can anyone explain the relation between nodes of a wavefunction and the nodal planes on the orbitals? In particular there is a paragraph in the textbook on page 39 that basically says "each wavefunction has n-1 nodes" and next to that paragraph there is an illustration of the shape of p subshells with a nodal plane between the two parts. Am I using these words all wrong?

Ruohan Sun 3I
Posts: 19
Joined: Fri Sep 29, 2017 7:07 am

### Re: Nodes

A nodal plane is also called a angular node. The number of nodal planes (angular nodes) is l, and by subtracting the number of nodes (n−1) by the number of nodal planes you can get the number of radial nodes (nodal surfaces), which is n−l−1

AtreyiMitra2L
Posts: 169
Joined: Fri Sep 29, 2017 7:03 am
Been upvoted: 1 time

### Re: Nodes

Alright so a wavefunction is just referring to a subshell (s, p, d, f...). n - 1 is just referring to the number of nodal planes within each subshell. Like in n = 2 (l is 1 or p), there is one nodal plane.

Camille Ng 1D
Posts: 18
Joined: Thu Jul 27, 2017 3:01 am

### Re: Nodes

Nodes are areas with no probability of an electron occupying the area. To calculate how many nodes there are you just need to do n-1.

Sheel Shah 1H
Posts: 33
Joined: Fri Sep 29, 2017 7:04 am

### Re: Nodes

electrons will not occupy the values at nodes