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Chemical element
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One of the elements of Earth's periodic table. It has atomic number 2, and is a noble gas. It has the symbol/abbreviation He. In normal conditions, it is an invisible gas, but if electricity is passed through it, it will glow pinkish-white.

A vial of glowing helium.

See also: List of elements

File:NatCopper.jpg This article is part of Project Elements, a All Birds project that aims to write comprehensive articles on each element.