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Distinguish between conductors,insulators and semiconductors based on the band theory of solids |
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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.Explanation:CLASSIFICATION of Metals, Semiconductors, and Insulators. In case of metallic conductors, conduction band overlaps on the electrons in the valence band. In insulators, there is a large gap between both these bands. ... Semiconductors have a small gap between both these bands. |
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