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Question
Write the symbols and valencies of the following radicals:
- Magnesium ion
- Ammonium
- Carbonate
- Nitrate
- Oxide
- Bisulphate
- Aluminium ion
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Solution
| Elements | Symbols | Valencies | |
| (a) | Magnesium ion | `"Mg"^(2+)` | 2 |
| (b) | Amonium | `"NH"_4^+` | 1 |
| (c) | carbonate | `"CO"_3^-2` | 2 |
| (d) | Nitrate | `"NO"_3^-` | 1 |
| (e) | Oxide | `"O"^(2-)` | 2 |
| (f) | Bisulphate | `"HOS"_4^-` | 1 |
| (g) | Aluminium ion | `"AI"^(3+)` |
3 |
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