The table below lists some important ions that you should really know about:
| Name of Ion | Formula |
| Hydroxide | OH (-) |
| Carbonate | CO3 (-2) |
| Sulphate | SO4 (-2) |
| Nitrate | NO3 (-) |
| Ammonium | NH4 (+) |
Exam Revision Notes and Online Learning Resources
Exam Revision Notes and Online Learning Resources