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Chemical Bonding

Why the melting and boiling points of covalent compounds are usually lower than those of ionic compound?


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March 19, 2009 11:00AM

Covalent compounds are formed by the sharing of electrons, hence the bonding is relatively weak. On the other hand, ionic compounds are formed by the transferring of electrons thus strong electrostatic forces holds the compound together, the strength in these forces co-existing within the ionic compounds require a large amount of energy to break it apart hence boiling and melting points are high.