Cations

Anions

Sodium (Na⁺)

Chlorine (Cl⁻)

Calcium (Ca²⁺)

Sulfate ( ${\text{SO}}_4^{\text{2}-}$ )

Magnesium (Mg²⁺)

Bicarbonate ( ${\text{HCO}}_3^{-}$ )

Potassium (K⁺)

Carbonate ( ${\text{CO}}_3^{2-}$ )

Barium (Ba²⁺)

Nitrate ( $\text{NO}{}_3{}^{-}$ )

Lithium (Li⁺)

Bromine (Br⁻)

Iron (Fe²⁺)

Iodine (I⁻)

Strontium (Sr²⁺)

Borate ( ${\text{BO}}_3^{3-}$ )

Sulfur (S²⁻)