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More commonly known as radicals.
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A '''polyatomic ion''' is a [[molecule]] which has a positive or negative electrical [[charge]].
 
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Ions which are formed when a group of atoms gains or loses electrons.<ref>Wile, Dr. Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref>
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Some common Polyatomic Ions are:
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*[[Acetate]]
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*[[Ammonium]]
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*[[Carbonate]]
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*[[Chlorate]]
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*[[Chlorite]]
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*[[Chromate]]
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*[[Cyanide]]
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*[[Dichromate]]
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*[[Hydronium]]
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*[[Hydroxide]]
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*[[Nitrate]]
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*[[Nitrite]]
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*[[Phosphate]]
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*[[Sulfate]]
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*[[Sulfite]]
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*[[Acetate]] (CH<sub>3</sub>COO<sup>-</sup>)
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*[[Ammonium]] (NH<sub>4</sub><sup>+</sup>)
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*[[Carbonate]] (CO<sub>3</sub><sup>2-</sup>)
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*[[Chlorate]] (ClO<sub>3</sub><sup>-</sup>)
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*[[Chlorite]] (ClO<sub>2</sub><sup>2-</sup>)
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*[[Chromate]] (CrO<sub>4</sub><sup>2-</sup>
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*[[Cyanide]] (CN<sup>-</sup>)
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*[[Dichromate]] (Cr<sub>2</sub>O<sub>7</sub><sup>-</sup>)
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*[[Hydronium]] (H<sub>3</sub>O<sup>+</sup>)
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*[[Hydroxide]] (OH<sup>-</sup>)
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*[[Nitrate]] (NO<sub>3</sub><sup>-</sup>)
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*[[Nitrite]] (NO<sub>2</sub><sup>-</sup>)
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*[[Phosphate]] (PO<sub>4</sub><sup>3-</sup>)
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*[[Sulfate]] (SO<sub>4</sub><sup>2-</sup>)
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*[[Sulfite]] (SO<sub>3</sub><sup>2-</sup>
    
==References==
 
==References==
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