Can I get valency table for writing chemical formula
Representation of some positive radicals and their valency
| Name of Radical | Representation | Valency |
|---|---|---|
| Hydrogen | H+ | 1 |
| Sodium | Na+ | 1 |
| Potassium | K+ | 1 |
| Silver | Ag+ | 1 |
| Ammonium | NH4+ | 2 |
| Magnesium | Mg2+ | 2 |
| Calcium | Ca2+ | 2 |
| Iron(II) | Fe2+ | 2 |
| Gold | Au2+ | 2 |
| Copper(II) | Cu2+ | 2 |
| Iron(III) | Fe3+ | 3 |
| Aluminium | Al3+ | 3 |
| 5Platinum(IV) | Pt4+ | 4 |
Representation of some negative radicals and their valency
| Name of Radical | Representation | Valency |
|---|---|---|
| Chloride | Cl− | 1 |
| Bromide | Br− | 1 |
| Hydroxide | OH− | 1 |
| Acetate | CH3COO− | 1 |
| Nitrate | NO3− | 1 |
| Nitrite | NO2− | 1 |
| Bisulphate | HSO4− | 1 |
| Bisulphite | HSO3− | 1 |
| Bicarbonate | HCO3− | 1 |
| Oxide | O2− | 2 |
| Carbonate | CO32− | 2 |
| Sulphate | SO42− | 2 |
| Sulphite | SO32− | 2 |
| Dichromate | Cr2O72− | 2 |
| Nitrite | N3− | 3 |
| Phosphate | PO43− | 3 |
Step-by-step method for writing a chemical formula:
