Ions Reference

Greek Prefixes
  1. Mono-
  2. Di-
  3. Tri-
  4. Tetra-
  5. Penta-
  6. Hexa-
  7. Hepta-
  8. Octa-
  9. Nona-
  10. Deca-
Common Acids
HCl Hydrochloric Acid
H2SO4 Sulfuric Acid
HNO3 Nitric Acid
HC2H3O2 Acetic Acid
H3PO4 Phosphoric Acid

The Most Common
Polyatomic Ions

C2H3O2 Acetate     NH4+ Ammonium
CN Cyanide     NO3 Nitrate     
CO32– Carbonate      OH Hydroxide     
SO42– Sulfate      PO43– Phosphate     
HCO3 hydrogen carbonate (bicarbonate)

Common Compounds
H2O Water
NH3 Ammonia
CH4 Methane
C2H5OH or CH3CH2OH or C2H6O Ethanol
Cations
Ammonium NH4+
Cadmium Cd2+
Chromium(III)
chromic
Cr3+
Cobalt(II)
cobaltous
Co2+
Copper(I)
cuprous
Cu+
Copper(II)
cupric
Cu2+
Hydrogen H+
Iron(II)
ferrous
Fe2+
Iron(III)
ferric
Fe3+
Lead(II)
plumbous
Pb2+
Lead(IV)
plumbic
Pb4+
Manganese(II)
manganous
Mn2+
Mercury(I)
mercurous
Hg22+
Mercury(II)
mercuric
Hg2+
Scandium Sc3+
Silver Ag+
Tin(II)
stannous
Sn2+
Tin(IV)
stannic
Sn4+
Titanium(IV) Ti4+
Zinc Zn2+
Anions
Arsenate AsO43–
Borate BO33–
Carbonate CO32–
Chlorate ClO3
Chlorite ClO2
Chromate CrO42–
Cyanide CN
Dichromate Cr2O72–
Dihydrogen Phosphate H2PO4
Hydride H
Hydrogen Carbonate HCO3
Hydrogen phosphate HPO42–
Hydrogen sulfate HSO4
Hydroxide OH
Hypochlorite ClO
Nitrate NO3
Nitrite NO2
Perchlorate ClO4
Permanganate MnO4
Phosphate PO43–
Selenate SeO42–
Sulfate SO42–
Sulfite SO32–
Thiocyanate SCN
Thiosulfate S2O32–

Monatomic Ions by Group Number in the Periodic Table
Group Charge Example Ion Name
1 +1 Li+ Lithium
2 +2 Ca2+ Calcium
13 +3 Al3+ Aluminum
15 -3 P3– Phosphide
16 -2 S2– Sulfide
17 -1 Br Bromide
This page is useful with the Chemical Nomenclature Group Activity.
Last updated: Mar 10, 2014        Home