Question

Why are metals good conductor of electricity and non metals are not?

Answer 1

Metals have free electrons which helps them in the conduction of electricity whereas non metals have no free electrons which makes them a poor conductor of electricity.

Moreover, when electicity is passed through a metallic wire these free elections move in a particular direction to conduct the flow of charges which helps in conduction of electricity.

However some exceptions are there.Such as graphite being a non metal is a good conductor of electricity and are also used as electrodes..

Hope this helps U..........