A charged chemical unit. A positive ion is called a cation and a negatively charged ion is called an
anion. The following table lists the names given to some of the more common ions.
| ion |
formula |
| acetate |
 |
| aluminum |
 |
| ammonium |
 |
| barium |
 |
| bromate |
 |
| bromide |
 |
| calcium |
 |
| carbonate |
 |
| chlorate |
 |
| chloride |
 |
| chlorite |
 |
| chromate |
 |
| chromium (III) |
 |
| cobalt (II) |
 |
| copper (I) |
 |
| copper (II) |
 |
| cyanate |
 |
| cyanide |
 |
| dichromate |
 |
| fluoride |
 |
| hexacyanoferrate (II) |
 |
| hexacyanoferrate (III) |
 |
| hydride |
 |
| hydrogen carbonate |
 |
| hydrogen sulfate |
 |
| hydronium |
 |
| hydroxide |
 |
| hypochlorite |
 |
| iodide |
 |
| iron (II) |
 |
| iron (III) |
 |
| lead (II) |
 |
| magnesium |
 |
| mercury (I) |
 |
| mercury (II) |
 |
| nickel (II) |
 |
| nitrate |
 |
| nitrite |
 |
| oxalate |
 |
| oxide |
 |
| perchlorate |
 |
| permanganate |
 |
| peroxide |
 |
| phosphate |
 |
| phosphide |
 |
| phosphite |
 |
| potassium |
 |
| silver |
 |
| sodium |
 |
| sulfate |
 |
| sulfide |
 |
| sulfite |
 |
| thiocyanate |
 |
| thiosulfate |
 |
| tin (II) |
 |
| tin (IV) |
 |
| zinc |
 |
