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For a metallic crystal, which band do the delocalized electrons occupy?

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in Chemistry – Class 12 by (188k points)
For a metallic crystal, which band do the delocalized electrons occupy?

(a) Conduction band

(b) Valence band

(c) Both, conduction and valence bands

(d) There are no delocalized electrons

The question was asked during an interview.

Question is from Solid State Electrical Properties topic in section Solid State of Chemistry – Class 12

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Best answer
The correct option is (a) Conduction band

The best explanation: A metallic crystal has valence electrons in the valence band and free moving, delocalized electrons in the conduction band. For a metal, these two bands are very close to each other.

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