# How do you calculate the energy of an electron in the ground state of a hydrogen atom ?

##### 1 Answer

Sep 27, 2015

You can calculate the ground state energy using The Bohr Model

#### Explanation:

A simple expression for the energy of an electron in the hydrogen atom is:

This gives rise to the familiar electron energy level diagram where they converge and coalesce.

So for an electron in

To convert to joules you can x this by

For many - electron atoms quite complicated approximate methods can be used which take into account factors such as electron interactions and screening effects.