Ionic compounds are formed from millions of positive and negative ____. Each positive ion is surrounded by ____ ions, and each negative ion is surrounded by ____ ions. The attractions between the oppositely charged ions are very ____ making it difficult to separate the ions from each other. This is why ionic compounds have very ____ melting points. Ionic compounds can conduct ____ but only if they are first ____ or ____ in water. This is because the ions must be free to ____ about and carry the charge. Ionic compounds do not conduct electricity when they are ____.

junior cert science Properties of ionic compounds

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