Graphite is a conductor of electricity because

Foundation

Chemistry Foundation

Allotropes of Carbon

Question

it has free valence electrons.

it is a non-metal form of carbon.

it is an allotrope of carbon.

Both A and B.

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Graphite is a conductor of electricity because as can be seen in the crystal structure of graphite (in the figure) it has free valence electrons which can conduct electricity.

Graphite displays the property of both metal and non-metal. As a metal, graphite is a good conductor of electricity due to the mobility of electrons in outer valence shells.