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Ionic compounds - EdexcelNaming ionic compounds with -ide and -ate

When a metal element reacts with a non-metal element an ionic compound is formed. They have a giant lattice structure with strong ionic bonds. A lot of energy is needed to overcome these bonds.

Part of Combined ScienceKey concepts in chemistry

Naming ionic compounds with -ide and -ate

The name of an ends in:

  • -ide if it contains just two
  • -ate if it contains three or more elements, one of which is oxygen
Name (-ide)FormulaName (-ate)Formula
Calcium carbideCaC2Calcium carbonateCaCO3
Potassium iodideKIPotassium iodateKIO3
Iron(II) sulfideFeSIron(II) sulfateFeSO4
Name (-ide)Calcium carbide
FormulaCaC2
Name (-ate)Calcium carbonate
FormulaCaCO3
Name (-ide)Potassium iodide
FormulaKI
Name (-ate)Potassium iodate
FormulaKIO3
Name (-ide)Iron(II) sulfide
FormulaFeS
Name (-ate)Iron(II) sulfate
FormulaFeSO4
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