------- is the hardest substance or hardest non metal
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diamond is the hardest non metal substance
gaurav2202004:
Diamond is the hardest non metal or substance
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heyy mate..!!!
Hardest non metal is diamond. It is an allotrope of carbon. It is the hardest known natural occurring substance. But now scientists have discovered wurtzite boron nitride w-BN which has more indentation strength than diamond.
thank u:)
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