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← ScienceWhich outcome occurs when the conduction band overlaps valence band?
A)Material displays metallic conductivity.✓
B)Material becomes an insulator state.
C)Material starts a superconducting effect.
D)Material shows semiconducting properties.
💡 Explanation
Metallic conductivity occurs because overlapping bands provide readily available electrons for conduction, by band theory, therefore conductivity is substantial rather than semiconducting or insulating behaviors since no energy (band gap) needs to be exceeded.
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