Final answer:
Diamonds and graphite, despite being made of the same element, carbon, exhibit different properties due to their unique structures.
Explanation:
Diamonds and graphite are both made solely of carbon but possess different properties due to their distinct structures. Diamonds have carbon atoms bonded in a 3D network, making them hard, while graphite consists of carbon atoms arranged in layers with weak bonds, giving it a soft and lubricating nature.
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