Common Ions
Common Positive Ions
I
Chemical
formula
Li+
Na+
K+
Cu+
Ag+
H+
NH4+
II
Name
Lithium ion
Sodium ion
Potassium ion
Copper(I) ion
Silver ion
Hydrogen ion
Ammonium ion
Chemical
formula
Pb2+
Mg2+
Mn2+
Ca2+
Fe2+
Co2+
Cu2+
Zn2+
V2+
III
Name
Lead(II) ion
Magnesium ion
Manganese(II) ion
Calcium ion
Iron(II) ion
Cobalt(II) ion
Copper(II) ion
Zinc ion
Vanadium(II) ion
Chemical
formula
Al3+
Fe3+
Cr3+
V3+
Name
Aluminium ion
Iron(III) ion
Chromium(III) ion
Vanadium(III) ion
Common Negative Ions
I
Chemical
formula
HFClBrINO2NO3OHHCO3HSO3HSO4MnO4CN-
II
Name
Hydride ion
Fluoride ion
Chloride ion
Bromide ion
Iodide ion
Nitrite ion
Nitrate ion
Hydroxide ion
Hydrogencarbonate
ion
Hydrogensulphite ion
Hydrogensulphate ion
Permanganate ion
Cyanide ion
Chemical
formula
O2S2SO32SO42S2O32CO32CrO42Cr2O72-
III
Name
Oxide ion
Sulphide ion
Sulphite ion
Sulphate ion
Thiosulphate ion
Carbonate ion
Chromate ion
Dichromate ion
Chemical
formula
PO43P3N3-
-ide: non-metal ion
-ate: the ion that has the largest number of Oxygen atoms.
-ite would be used for the ion with the smaller. NO2, NO3, Nitrite, Nitrate
How do you know whether to use 'ide' or 'ate', when naming a compound? (superprof.co.uk)
Name
Phosphate ion
Phosphide ion
Nitride ion
Colours of Some Common Aqueous Ions
Ion
Formula
2+
Colour in aqueous solution
Iron(II) ion
Iron(III) ion
Vanadium(II) ion
Vanadium(III) ion
Copper(II) ion
Cobalt(II) ion
Fe
Fe3+
V2+
V3+
Cu2+
Co2+
Pale green
Yellow
Violet
Green
Blue or Green
Pink
Chromium(III) ion
Manganese(II) ion
Manganese(III) ion
Nickel(II) ion
Chromate ion
Dichromate ion
Permanganate ion
Cr3+
Mn2+
Mn3+
Ni2+
CrO42Cr2O72MnO4-
Green
Very pale pink (Colourless)
Purple
Green
Yellow
Orange
Purple
Common Ions (A)
Common Positive Ions
I
Chemical
formula
II
Name
Li+
Na+
K+
Cu+
Ag+
H+
NH4+
Chemical
formula
III
Name
Pb2+
Mg2+
Mn2+
Ca2+
Fe2+
Co2+
Cu2+
Zn2+
V2+
Chemical
formula
Name
Al3+
Fe3+
Cr3+
V3+
Common Negative Ions
I
Chemical
formula
HFClBrINO2NO3OHHCO3HSO3HSO4MnO4CN-
II
Name
Chemical
formula
O2S2SO32SO42S2O32CO32CrO42Cr2O72-
III
Name
Chemical
formula
PO43P3N3-
Name
Common Ions (B)
Common Positive Ions
I
Chemical
formula
II
Name
Chemical
formula
Lithium ion
Sodium ion
Potassium ion
Copper(I) ion
Silver ion
Hydrogen ion
Ammonium ion
III
Name
Chemical
formula
Lead(II) ion
Magnesium ion
Manganese(II) ion
Calcium ion
Iron(II) ion
Cobalt(II) ion
Copper(II) ion
Zinc ion
Vanadium(II) ion
Name
Aluminium ion
Iron(III) ion
Chromium(III) ion
Vanadium(III) ion
Common Negative Ions
I
Chemical
formula
II
Name
Hydride ion
Fluoride ion
Chloride ion
Bromide ion
Iodide ion
Nitrite ion
Nitrate ion
Hydroxide ion
Hydrogencarbonate
ion
Hydrogensulphite ion
Hydrogensulphate ion
Permanganate ion
Cyanide ion
Chemical
formula
III
Name
Oxide ion
Sulphide ion
Sulphite ion
Sulphate ion
Thiosulphate ion
Carbonate ion
Chromate ion
Dichromate ion
Chemical
formula
Name
Phosphate ion
Phosphide ion
Nitride ion
Colours of Some Common Aqueous Ions
Ion
Formula
Colour in aqueous solution
Formula
Colour in aqueous solution
Iron(II) ion
Iron(III) ion
Vanadium(II) ion
Vanadium(III) ion
Copper(II) ion
Cobalt(II) ion
Chromium(III) ion
Manganese(II) ion
Manganese(III) ion
Nickel(II) ion
Chromate ion
Dichromate ion
Permanganate ion
Ion
Fe2+
Fe3+
V2+
V3+
Cu2+
Co2+
Cr3+
Mn2+
Mn3+
Ni2+
CrO42Cr2O72MnO4-
0