chemicalelements.info

«H

Helium

2
He
Helium
4.0026

Properties

Symbol:He
Atomic Number:2
Atomic Weight:4.0026

Electron Configuration

Helium (He) is a chemical element with atomic number 2. It is the second most abundant element in the universe, after hydrogen.

The speed of sound is significantly faster in helium than in the normal air we breathe, and therefore our voices get distorted after breathing in helium.