Ionic Compounds – GCSE Chemistry Revision (AQA Additional Science – Double and Triple)

What do they do?

  • After sodium and chlorine react to gain full outer shells, becoming ions in the process, they are doomed to stick together in a compound called sodium chloride (vinegar salt)
  • But the chances are it wasn’t just one atom of sodium and one atom of chlorine in the reaction – there were probably thousands of atoms all doing the same thing and forming ions
  • Because of their charges, all the ions stick together in a massive lump (a grain of vinegar salt)
  • You’d think this would be a horrible mess, but it actually turns out to be a very neat arrangement we call a giant ionic lattice
  • It’s made up of ions that would seem to go on and on forever in a regular arrangement


  • Ionic compounds don’t make molecules – just those giant ionic structures I’ve already described
  • This is because their strong electrostatic force of attraction works in all directions
  • The ions pack together tightly, like words in a revision book

About Matt

I like writing, filmmaking, programming and gaming, and prefer creating media to consuming it. On the topic of consumption, I'm also a big fan of eating.
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