One of the elements of Earth's periodic table. It has atomic number 8, and is a nonmetal. It has the symbol/abbreviation O. In normal conditions, it is an invisible gas, but if electricity is passed through it, it will glow purplish. Oxygen is essential for Human breathing.
A vial of glowing oxygen.
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. |
