Table of Common Ions (Cations and Anions)

Cations

• Ions with a positive charge.

• Examples of 1+ cations:

  • Ammonium ion: NH_4^+

Anions

• Ions with a negative charge.

• Examples:

1- Anions

• Bicarbonate ion (Hydrogen Carbonate ion): HCO_3^-

• Cyanide ion: CN^-

• Hydrogen Sulfate ion: HSO_4^-

• Hydrogen Sulfite ion: HSO_3^-

• Hydroxide ion: OH^-

• Perchlorate ion: ClO_4^-

• Chlorate ion: ClO_3^-

• Chlorite ion: ClO_2^-

• Hypochlorite ion: ClO^-

• Nitrate ion: NO_3^-

• Nitrite ion: NO_2^-

• Acetate ion: C2H3O_2^-

• Permanganate ion: MnO_4^-

2- Anions

• Chromate ion: CrO_4^{2-}

• Dichromate ion: Cr2O7^{2-}

• Oxalate ion: C2O4^{2-}

• Silicate ion: SiO_3^{2-}

• Hydrogen Phosphate ion: HPO_4^{2-}

• Sulfate ion: SO_4^{2-}

• Sulfite ion: SO_3^{2-}

• Thiosulfate ion: S2O3^{2-}

3- Anions

• Phosphite ion: PO_3^{3-}

• Phosphate ion: PO_4^{3-}