Science
Diamond and Graphite Are the Same Element — Which One?
Diamond and graphite are both allotropes of the same chemical element — which one?
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What is the answer: which element forms both diamond and graphite?
The answer is carbon. Diamond and graphite are both allotropes of carbon — the exact same atom arranged in two completely different structures.
Why do diamond and graphite look so different if they are the same element?
In diamond, carbon atoms bond in a rigid 3D lattice, making it the hardest natural material. In graphite, they form slippery flat layers, which is why it's soft enough to write with.
Is pencil lead actually lead?
No. Despite the name, pencil 'lead' contains no lead metal at all — it's graphite, a form of carbon mixed with clay.