What is Oxide?
An '''oxide''' is a [[chemical compound]] containing at least one [[oxygen]] atom and at least one atom of one other [[Chemical element|element]]. Most of the [[Earth]]'s crust consists of oxides (mainly [[silica]]). Oxides can be made when elements are oxidized by air (when oxygen in the air [[reacts]] with the element). Oxide is a valence electorn with a -2 charge. Some common oxides are: *[[Water]] ([[hydrogen]] oxide) (H<sub>2</sub>O) *[[Iron(III) oxide]] ([[Rust]]) (Fe<sub>2</sub>O<sub>3</sub>) *[[Aluminium oxide]] (Al<sub>2</sub>O<sub>3</sub>) *[[Lead(II) oxide]] (PbO) *[[Calcium oxide]] (CaO) *[[Carbon dioxide]] (CO<sub>2</sub>) *[[Carbon monoxide]] (CO) *[[Magnesium oxide]] (Magnesia) (MgO) *[[Phosphorus pentoxide]] (P<sub>4</sub>O<sub>10</sub>) *[[Sulfur dioxide]] (SO<sub>2</sub>) *[[Sulfur trioxide]] (SO<sub>3</sub>) *[[Silicon dioxide]] (SiO<sub>2</sub>) *[[Nitrous oxide]] (laughing gas) (N<sub>2</sub>O) *[[Zinc oxide]] (ZnO) *[[Copper(I) oxide]] (CuO) and [[Copper(II) oxide]] (Cu<sub>2</sub>O) {{chem-stub}} [[Category:Oxides| ]] [[Category:Ions]]