Question

properties of the ionic compunds ​

Answer 1

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Ionic Compounds have high boiling and melting points as they're very strong and require a lot of energy to break. 

The electrostatic forces of attraction between oppositely charged ions lead to the formation of ions. Ionic compounds form crystals.

They do not exist as discrete molecules but indeed they are aggregates of oppositely charged ions.

They are very hard crystalline solid. (As because they have strong forces of attraction