4
Question Question 4
Write the symbols and valencies of the following radicals:
(a) Magnesium ion
(b) Ammonium
(c) Carbonate
(d) Nitrate
(e) Oxide
(f) Bisulphate
(g) Aluminium ion
| Radicals | Symbols | Valency |
|---|---|---|
| Magnesium ion | Mg2+ | 2 |
| Ammonium | NH4+ | 1 |
| Carbonate | CO32- | 2 |
| Nitrate | NO3- | 1 |
| Oxide | O2- | 2 |
| Bisulphate | HSO4- | 1 |
| Aluminium | Al3+ | 3 |