For a metallic crystal, which band do the delocalized electrons occupy?
A
Conduction band
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B
Valence band
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C
Both, conduction and valence bands
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D
There are no delocalized electrons
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Solution
The correct option is A Conduction band 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.