Question

why graphite is good conductor of electricity while diamond not.​

Answer 1

The reason graphite is a good conductor of electricity is because of the presence of delocalised electrons, as each carbon atom forms only three covalent bonds with three other carbon atoms. ... Due to the presence of delocalised electrons in graphite structure , they are able to conduct electricity as well as heat.

while diamond because its 4 electrons shared there is no free electron to conduct. so simple re. Diamond is a bad conductor of electricity but good conductor of heat. ... But in diamond, each carbon atom is covalently bonded with four other carbon atoms and there are no free electrons.