The upper level of the valence band and the l | vedclass

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(B) In conductors,there is no forbidden energy gap between the conduction band and the valence band.For materials like copper,which is a metal (conduc

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copper

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(B) In conductors,there is no forbidden energy gap between the conduction band and the valence band.For materials like copper,which is a metal (conductor),the valence band and the conduction band overlap.This overlapping allows electrons to move freely,which is why copper is a good conductor of electricity.Silicon,germanium,and carbon (in diamond form) are semiconductors or insulators,where a forbidden energy gap exists.

The upper level of the valence band and the lower level of the conduction band overlap in the case of

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