Question

why graphite is a good conductor of electricity whereas diamond is not?

Answer 1

Dear User

Each carbon atom in graphite is directly linked to only three carbon atoms through covalent bonds.Therefore, of the four valence electrons in a carbon atom only three are used for bonding and the fourth is relatively free and can move from one carbon atom to the other. Thus grahite is conducts electricity.

While in diamond, each carbon atom is covalently bonded to four other carbon atoms. Thus, there are no free electrons to conduct electricity.

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