Question

Energy band gap between valence band and conduction band for conductor is:

• A. more than semiconductors
• B. Zero
• C. more than insulators
• D. None of these

Answer 1

The correct option is B Zero

A conductor always has electrons present in its conduction band irrespective of the temperature. This means that even when the electrons don't possess any energy, they lie in the conduction band. This is possible only if the energy gap between the valence band and conduction band is zero.