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 is graphite a good conductor of electricity Class 10?
Graphite is the one ‘allotropic form’ of carbon. In a graphite molecule, one valence electron of each carbon atom remains free. Due to the free electrons in its framework, graphite can perform electricity. Therefore, graphite is said to be a good conductor of electricity.
Why is graphite a good conductor of electricity but diamond is non conductor of electricity D state any two uses of graphite?
(c) Graphite is a good conductor of electricity because of free electrons presence in the graphite crystal. But there will be no free electrons in the diamond crystals, so there will not be any conductance of electricity. (d) Graphite is used for making leads for pencils and used as lubricants.
Why graphite is a good conductor while diamond is not?
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 diamond is a bad conductor of heat and 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.
Why is graphite a good conductor?
Each carbon atom is bonded into its layer with three strong covalent bonds. This leaves each atom with a spare electron, which together form a delocalised ‘sea’ of electrons loosely bonding the layers together. These delocalised electrons can all move along together – making graphite a good electrical conductor.
What are the difference between diamond and graphite?
For example, Graphite and diamond are two different allotropes of carbon.
Explain the difference in properties of diamond and graphite on the basis of their structures.
|1) It has a crystalline structure.||1) It has a layered structure.|
|2) It is made up of tetrahedral units.||2) It has a planar geometry.|
Which of the following is a good conductor of electricity diamond of graphite Why?
In a graphite molecule, one valence electron of each carbon atom remains free, Therefore graphite gained a name of a good conductor of electricity. Whereas in diamond, they have no free mobile electron. so it has been said that diamonds are bad conductor electricity.
Why graphite is used as electrode and not diamond?
Graphite is a good conductor of electricity. Therefore, it is used for making dry cell electrodes. Whereas, diamond does not conduct electricity, as it has no free electrons and all its valence electrons go into the formation of strong covalent bonds.
Why diamond is hard and graphite is soft?
The carbon atoms in graphite appear to bond with weaker intermolecular forces, allowing the layers to move over one another. The weak intermolecular forces are known as the weak Van der Waals forces. Therefore, diamond is hard but graphite is soft and slippery even though both have carbon present in them.
Why is graphite not used for making electrical wires?
Graphite is not ductile so it can’t be used to make electric wires.
Is diamond good conductor of heat and electricity?
Unlike most electrical insulators, diamond is a good conductor of heat because of the strong covalent bonding and low phonon scattering. Thermal conductivity of natural diamond was measured to be about 2200 W/(m·K), which is five times more than silver, the most thermally conductive metal.
Which is the bad conductor of electricity but good conductor of heat?
Diamond is a bad conductor of electricity but a good conductor of heat.
Do diamonds conduct electricity?
Diamond. Diamond is a form of carbon in which each carbon atom is joined to four other carbon atoms, forming a giant covalent structure. … It does not conduct electricity as there are no delocalised electrons in the structure.