Question

which is the most hardest non metal​

Answer 1

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The most hardest non-metal is Diamond.

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✡Extra Knowledge✡

• It is an allotrope of carbon.

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Answer 2

Explanation:

Enamel

Enamel, in anatomy, the hardest tissue of the body, covering part or all of the crown of the tooth in mammals. Enamel, when mature, consists predominantly of apatite crystals containing calcium and phosphate. Enamel is not living and contains no nerves.