Question

why graphite conduct electricity and diamont dont as both of them are made of carbon????

Answer 1

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Why graphite conduct electricity and diamont dont as both of them are made of carbon????

Diamond is much more harder and stronger whereas graphite is considerably soft. To conduct electricity it is essential that the electrons within the metal moves. So since graphite is softer electrons can easily move whereas in diamond it is not possible though both of them being the allotropes of carbon.

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Answer 2

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here's your answer:

Graphite: In Graphite, covalent structure, with each carbon bonded to three other carbon atoms in a hexagonal arrangement. Three out of four valence electrons are used for covalent bonding with other carbon atoms. Thus, graphite is a good conductor.

Diamond: In Diamond, each carbon atom has a covalent bond with four other carbon atoms in a tetrahedral arrangement to form a rigid structure. This is a stable arrangement where the outer electron layer of all atoms are filled with 8 electrons; so, there are no free electrons to move and create electric current. Thus diamond is an insulator/dielectric.

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