A dot and cross diagram for sodium chloride suggests that it is made up of pairs of sodium and chloride ions. It is not. A 3D construction model shows how the ions are arranged in a lattice structure.

Looking at the ingredient list of some popular processed foods will produce a puzzled look on the typical hacker’s face. Tricalcium phosphate, thiamine mononitrate, zinc proteinate, pyridoxine ...

The questions in this quiz are suitable for GCSE chemistry students studying properties of ionic compounds, the ionic lattice and forming ions. If you struggled with the quiz, don't panic - we've got ...