Ions to be Memorized: Cations and Anions

Aluminum ion

$Al^{3+}$.

Barium ion

$Ba^{2+}$ .

Beryllium ion

$$Be^{2+}$$

Bismuth ion

$$Bi^{3+}$$

Cadmium ion

$$Cd^{2+}$$

Calcium ion

$$Ca^{2+}$$

Chromium (II) ion

$$Cr^{2+}$$

Chromium (III) ion

$$Cr^{3+}$$

Copper (I) ion

$$Cu^{+}$$

Copper (II) ion

$$Cu^{2+}$$

Iron (II) ion

$$Fe^{2+}$$

Iron (III) ion

$$Fe^{3+}$$

Lead (II) ion

$$Pb^{2+}$$

Lead (IV) ion

$$Pb^{4+}$$

Lithium ion

$$Li^{+}$$

Magnesium ion

$$Mg^{2+}$$

Manganese (II) ion

$$Mn^{2+}$$

Manganese (IV) ion

$$Mn^{4+}$$

Mercury (I) ion

$$Hg_2^{2+}$$

Mercury (II) ion

$$Hg^{2+}$$

Nickel ion

$$Ni^{2+}$$

Potassium ion

$$K^{+}$$

Silver ion

$$Ag^{+}$$

Sodium ion

$$Na^{+}$$

Strontium ion

$$Sr^{2+}$$

Tin (II) ion

$$Sn^{2+}$$

Tin (IV) ion

$$Sn^{4+}$$

Zinc ion

$$Zn^{2+}$$

Ammonium ion

$$NH_4^{+}$$

Hydronium ion

$$H_3O^{+}$$

Fluoride ion

$$F^{-}$$

Chloride ion

$$Cl^{-}$$

Bromide ion

$$Br^{-}$$

Iodide ion

$$I^{-}$$

Oxide ion

$$O^{2-}$$

Sulfide ion

$$S^{2-}$$

Nitride ion

$$N^{3-}$$

Phosphide ion

$$P^{3-}$$

Carbide ion

$$C^{4-}$$

Acetate ion

$$C_2H_3O_2^{-}$$

Cyanide ion

$$CN^{-}$$

Carbonate ion

$$CO_3^{2-}$$

Hydrogen carbonate/ bicarbonate ion

$$HCO_3^{-}$$

Bromate ion

$$BrO_3^{-}$$

Perchlorate ion

$$ClO_4^-$$

Chlorate ion

$$ClO_3^-$$

Chlorite ion

$$ClO_2^{-}$$

Hypochlorite

$$ClO^{-}$$

Chromate ion

$$CrO_{4^{}}^{2-}$$

Dichromate

$$Cr_2O_7^{2-}$$

Hydroxide

$$OH^{-}$$

Peroxide ion

$$O_2^{2-}$$

Iodate ion

$$IO_3^{-}$$

Nitrate ion

$$NO_3^{-}$$

Nitrite ion

$$NO_2^{-}$$

Permanganate ion

$$MnO_4^{-}$$

Phosphate

$$PO_4^{3-}$$

Phosphite ion

$$PO_3^{3-}$$

Sulfate

$$SO_4^{2-}$$

Sulfite ion

$$SO_3^{2-}$$