Page 17 - classification of elements

Electronegative radical: The are those radicals that

have negative charge in them.

Monovalent Bivalent Trivalent Tetravalent

Radical Molecular Radical Molecular Radical Molecular Radical Molecular

formula formula formula formula

Hydroxide OH - Sulphate SO 4 - - Phosphate PO 4 - - - Carbide C - - - -

Chloride Cl - Carbonate CO 3 - - Nitride N - - -

Nitrate NO 3 - Sulphite SO 3 - - Phosphide P - - -

Nitrite NO 2 - Dichromate Cr O - -
2 7

Chlorate CLO - 3 Thiosulphate S O - -
2 3
Bicarbonate HCO - Peroxide O - -
3 2
Bisulphate HSO 4 -

Bisulphite HSO 3 -

Hydride H -

Permanganate MnO 4 -