Explanation: Being a non-metal, graphite is a good conductor of electricity due to the following reasons:
i. In graphite, carbon atoms are arranged in different layers.
ii. In each layer, every carbon atom is linked to three
neighbouring carbon atoms.
iii. Thus, the fourth electron of each carbon atom is free to move
continuously within the entire layer.
iv. Because of the presence of these free electrons in different
layers, graphite becomes a god conductor of electricity.
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