Helium is a noble gas with atomic number 2.

Atomic Structure of Helium

It's the second lightest and second most abundant element in the universe.

Helium has 2 protons, 2 neutrons, and 2 electrons in its atomic structure.

Helium's electron configuration is 1s².

Helium Orbital Diagram

Helium, as an element, is electrically neutral. It has a total charge of zero.

Valency and Valence Electrons of Helium

Chemically inert and stable due to a complete outer electron shell.

Inhaling helium in small amounts is generally non-toxic, although it can displace oxygen in high concentrations, causing suffocation if inhaled in excess.

Electron Configuration Calculator is an online tool that will help you find the electron configuration of any element in a second.