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Question
In terms of band theory, what is the difference Between a conductor and an insulator
Solution
The valence band of a conductor is partially-filled or it overlaps with a higher energy, unoccupied conduction band.
On the other hand, in the case of an insulator, the valence band is fully- filled and there is a large gap between the valence band and the conduction band.
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RELATED QUESTIONS
In terms of band theory, what is the difference Between a conductor and a semiconductor
Which of the following represents correct order of conductivity in solids?
Which of the following statements are true about metals?
(i) Valence band overlaps with conduction band.
(ii) The gap between valence band and conduction band is negligible.
(iii) The gap between valence band and conduction band cannot be determined.
(iv) Valence band may remain partially filled.
Assertion: Graphite is a good conductor of electricity however diamond belongs to the category of insulators.
Reason: Graphite is soft in nature on the other hand diamond is very hard and brittle.
Band theory of metals is based on ______
