Tuesday, 22 March 2016

1.49 understand why covalent compounds do not conduct electricity

In a covalent compound, there are no delocalised electrons, so it cannot hold a current (in other words, there are no electrons free to move, therefore there can be no transfer of electricity). 

NOTE: Graphite is an exception as this is a giant covalent structure and has the 4th ion free to move, so graphite can conduct electricity

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