For Non Conductor the Energy Gap Is?

The energy gap of insulator is approximately equal to 15 electron volts (eV). The electrons in valence band cannot move because they are locked up between the atoms. In order move the valence band electrons in to conduction band large amount of external energy is applied which is equal to the forbidden gap.

What is energy gap in conductor?

The difference between the valence band and conduction band is known as band gap or energy gap. In conductors, the valence band overlaps with the conduction band. Which means, electrons are already ready for conduction and energy gap in a conductor is zero.

Do conductors have energy gap?

For a conductor, conduction bands and valence bands are not separated and there is therefore no energy gap. The conduction band is then partially occupied (even at low temperatures), resulting in a “high” electrical conductivity.