Read the following statements : i) Non metals are poor conductors of electricity.ii) Graphite is a non metal and good conductor of electricity. *
Answers
Answer: So metals have contain free electrons in their outermost shell while non-metals don't and these electrons are ones which cause the electric current by their coordinated movement. Thats why, most non-metals are poor conductors of electricity(i.e. due to a deficiency of free electrons).
In graphite, the carbon atoms are joined together and arranged in layers. The links between the carbon atoms in the layer are strong, but the links between the layers are weak. ... Graphite is a non-metal and it is the only non-metal that can conduct electricity.
Explanation:
Answer -
Graphite is fully compose with layers of graphene which has the highest electrical and thermal conductivity in the world. graphene is sp2 hydridised which implies that each carbon atom make three
bonds with other three carbon atoms with in the larger using sigma type bonds. Each carbon atoms
consist of free pi electrons (delocalised electrons) in graphene layer and those act as a electron colude
above and below so whole layer of graphene can be considered as a lake of electron while carbon
atoms submerge in it , so these electrons are ready to move.
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