Electron Configuration Notation:

-shows the arrangment of electrons around the nucleus of an atom.

- helps chemist understanding how elements form chemical bonds.

- can be written using the period table or an electron configuration chart.

How to Write the Electron Configuration for Hydrogen

Since Hydrogen only has one electron it is the simplest electron configuration to write. Essentially there is just one electron around the Hydrogen nucleus.

Video: Hydrogen Electron Configuration Notation

Hydrogen only has one electron and therefore has a configuration of 1s1. In order to fill it's energy level it only needs one more electron obtain a full outershell (1s2). This is why we only put two electrons on Hydrogen atoms when drawing Lewis structures.