Anion

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An anion (pronounced with 3 syllables, as in "an eye on") is a negatively charged ion[1]. 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+ ions are cations and the Cl- ions are anions.

References

  1. Wile, Dr. Jay L. Exploring Creation With Chemistry. Apologia Educational Ministries, Inc. 1998