Tin Can Bay P-10 State School Author: D Cook 2009

VALENCY TABLE Cations (positive ions) Anions (negative ions)

Ammonium NH4+ Bromide Br-

Copper (I) (Cuprous) Cu+ Chloride Cl- Hydrogen H+ Cyanide CN- Lithium Li+ Fluoride F- Mercury (I) (Mercurous) Hg+ Hydride H-

Potassium K+ Hydrogen carbonate (bicarbonate) HCO3-

Silver Ag+ Hydrogen sulphate (bisulphate) HSO4-

Sodium Na+ Hydroxide OH- Iodide I-

Nitrate NO3-

Nitrite NO2-

Permanganate MnO4-

Mono-valent

Thiocyanate SCN-

Barium Ba2+ Carbonate CO32-

Berylium Be2+ Chromate CrO42-

Cadmium Cd2+ Dichromate Cr2O72-

Calcium Ca2+ Oxalate C2O42-

Chromium (II) (Chromous) Cr2+ Oxide O2-

Cobalt (II) Co2+ Peroxide O22-

Copper (II) (Cupric) Cu2+ Sulfate SO42-

Iron (II) (Ferrous) Fe2+ Sulfide S2-

Lead (II) Pb2+ Sulfite SO32-

Magnesium Mg2+ Thiosulfate S2O32-

Manganese Mn2+ Mercury Hg2+ Nickel Ni2+ Strontium Sr2+ Sulfur S2+ Tin (II) (Stannous) Sn2+

Di-valent

Titanium Ti2+

Aluminium Al3+ Nitride N3-

Bismuth Bi3+ Phosphate PO43-

Boron Bo3+ Phosphide P3- Chromium (III) (Chromic) Cr3+ Cobalt (III) Co3+ Einsteinium Es3+ Gold Au3+

Tri-valent

Iron (III) (Ferric) Fe3+

Carbon C4+

Lead (IV) Pb4+

Molybdenum Mo4+

Silicon Si4+

Tetra-valent

Tin (IV) (Stannic) Sn4+