sodium
Na+
potassium
K+
SILVER
Ag+
magnesium
Mg2+
calcium
Ca2+
zinc
Zn2+
aluminium
Al3+
hydrogen
H+
HYDRIDE
H-
CHLORIDE
Cl-
BROMIDE
Br-
IODIDE
I-
OXIDE
O2-
SULPHIDE
S2-
NITRIDE
N3-
AMMONIUM
NH+4
HYDROXIDE
OH-
NITRATE
NO-3
HYDROGEN CARBONATE
HCO-3
carbonate
CO3 2-
SULPHITE
SO3 2-
SULPHATE
SO4 2-
PHOSPHATE
PO4 3-