Aluminium
Al’ 3+
Ammonium
NH4’ +
Ammonia
NH3
Barium
Ba’ 2+
Calcium
Ca’ 2+
Copper(ii)
Cu’ 2+
Hydrogen
H+
Iron(ii)
Fe’ 2+
Iron (iii)
Fe ‘ 3+
Lead
Pb’ 2+
Lithium
Li+
Magnesium
Mg2+
Potassium
K+
Silver
Ag+
Sodium
Na+
Zinc
Zn2+
Bromide
Br-
Carbonate
CO3 ‘2-
Chloride
Cl-
Flouride
F-
Iodide
I-
Hydroxide
OH-
Nitrate
NO3’ -
Oxide
O2 ‘-