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Which outcome results when band structure changes during extreme compression of silicon?

A)Metallic behavior and conductivity increase
B)Increased brittleness without conductivity change
C)Enhanced semiconducting capability preservation
D)Complete structural collapse becomes impossible

💡 Explanation

A structural transition may cause band overlap; band structure alterations from high pressure result in electrons gaining mobility because the direct band gap closes to allow Metallic behavior, therefore conductivity increases; rather than remaining semiconducting.

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