Your question: Why is graphite a good conductor of electricity Class 8?

Why is graphite is a good conductor of electricity?

In a graphite molecule, one valence electron of each carbon atom remains free, Thus making graphite a good conductor of electricity. Whereas in diamond, they have no free mobile electron. Hence there won’t be flow of electrons That is the reason behind diamond are bad conductor electricity.

Why graphite is a good conductor of electricity but not diamond?

Graphite can conduct electricity because of the delocalised (free) electrons in its structure. These arise because each carbon atom is only bonded to 3 other carbon atoms. … However, in diamond, all 4 outer electrons on each carbon atom are used in covalent bonding, so there are no delocalised electrons.

Why is graphite The only non metal that conducts electricity?

In graphite each carbon is bonded to three other carbon atoms hence leaving behind a free electron. Due to the presence of this one delocalised electron, graphite is a good conductor of electricity. However, graphite is the only non-metal that can conduct electricity.

Why does graphite conducts electricity but not diamond Class 10?

Answer: It is because of free electron in graphite. Explanation: Graphite is a good conductor of electricity as each carbon atom is linked to three of its neighbouring carbon atoms. … But diamond do not contain any free electon and all electrons are covalently bonded.

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Why diamond is hard and bad conductor of electricity?

As we know diamond is a giant covalent structure i.e. each carbon atom is covalently bonded with other carbon atoms. So the four outermost electrons, four carbon atoms, are engaged or trapped in the covalent bonds which means that there are no free electrons. … So diamond is a bad conductor of electricity.

Is diamond conductor of electricity?

Most diamonds are electrical insulators and extremely efficient thermal conductors. Unlike many other minerals, the specific gravity of diamond crystals (3.52) has rather small variation from diamond to diamond.

Why is graphite conducting?

Graphite has delocalised electrons, just like metals. These electrons are free to move between the layers in graphite, so graphite can conduct electricity. … The forces between the layers in graphite are weak. This means that the layers can slide over each other.

Is a graphite a conductor or insulator?

Graphite is an interesting material, an allotrope of carbon (as is diamond). It displays properties of both metals, and nonmetals. However, like a metal, graphite is a very good conductor of electricity due to the mobility of the electrons in its outer valence shells.

Why is graphite soft and a conductor of electricity?

Graphite is a soft lubricant and a good conductor of electricity because their electrons are delocalised and free to move. These free electrons make graphite a good conductor of electricity. It consist of soley of carbon atoms.