Question

What are energy bands how are they formed distinguish between conductors and semiconductors on the basis of formation of band?

Answer 1

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⭐⭐⬅️ Answer ➡️➡️➡️➡️

In insulators the electrons in the valence band are separated by a large gap from the conduction band, in conductors like metals the valence band overlaps the conduction band, and in semiconductors there is a small enough gap between the valence and conduction bands that thermal or other excitations can bridge the gap.

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Answer 2

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1. we can say that the energy level of an atom vary in valence bands and in conduction bands.
2. Since the electrons interact with other electrons, the energy associated with a material is altered so, the electrons are associated with a band of energy levels.

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