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An '''anion''' is a negatively charged [[ion]]<ref>Wile, Dr. Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref>. It is the opposite of a [[cation]]. It is so named because, during [[electrolysis]], it migrates toward the [[anode]]. Anions are typically nonmetal ions. In a sodium chloride solution the Na<sup>+</sup> ions are cations and the Cl<sup>-</sup> ions are anions.
An anion is an [[ion]] which has extra [[electron]]s, and therefore, a negative charge.
==References==
<references/>
[[Category:Chemistry]]
[[Category:Chemistry]]