Question

What is diamond? Why is it bad conductor of electricity?​

Answer 1

Explanation:

Diamond is a native crystalline carbon that is the hardest known mineral. ... Crystallized carbon produced artificially is also called diamond. The name diamond is derived from the ancient Greek adamas ("invincible"). Their hardness and high dispersion of light make diamonds useful for industrial applications and jewelry.

In diamond, each carbon atom is covalently bonded with four other carbon atoms. So, the four outermost electrons of a carbon atom are engaged or trapped in the covalent bonds, having no free electrons making it a bad conductor of electricity

Answer 2

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Diamond is an allotrope of carbon. It is hardest natural substance known.

It is bad conductor of electricity because it has no free electrons.