Polyatomic ion

A polyatomic ion is an ion (chemical compound with an electrical charge) that is made of multiple atoms. A polyatomic ion can be either a cation (positive charge) or anion (negative charge).

Many minerals contain polyatomic anions. Polyatomic cations are rarer, and are usually made by people.

Some polyatomic ions
Cations Anions
Charge Formula Name Charge Formula Name
+1 H3O+ Hydronium -1 OH− Hydroxide
+1 NH+4 Ammonium -1 NO−3 Nitrate
+2 Hg2+2 Mercury polycations -1 CH3COO− Acetate
+2 VO2+ Vanadyl ion -2 SO2−4 Sulfate
-2 CO2−3 Carbonate
-3 C3H5O(COO)3−3 Citrate
-3 PO3−4 Phosphate
This article is issued from Wikipedia. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.