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)	Formula	Name (-ate)	Formula
Calcium carbide	CaC₂	Calcium carbonate	CaCO₃
Potassium iodide	KI	Potassium iodate	KIO₃
Iron(II) sulfide	FeS	Iron(II) sulfate	FeSO₄

Name (-ide)	Calcium carbide
Formula	CaC₂
Name (-ate)	Calcium carbonate
Formula	CaCO₃

Name (-ide)	Potassium iodide
Formula	KI
Name (-ate)	Potassium iodate
Formula	KIO₃

Name (-ide)	Iron(II) sulfide
Formula	FeS
Name (-ate)	Iron(II) sulfate
Formula	FeSO₄

Polyatomic ions

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