In semiconductors at room temperature,

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(C) In semiconductors,the energy gap between the valence band and the conduction band is small. At room temperature,thermal energy is sufficient for s

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the conduction band is partially filled and the valence band is partially empty.

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(C) In semiconductors,the energy gap between the valence band and the conduction band is small. At room temperature,thermal energy is sufficient for some electrons to jump from the valence band to the conduction band by overcoming the forbidden energy gap. As a result,some electrons move to the conduction band,making it partially filled. Simultaneously,this leaves behind vacancies (holes) in the valence band,making it partially empty. Therefore,at room temperature,both the conduction band and the valence band are partially filled/empty.

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