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Which outcome develops when impurities enter a silicon crystal lattice?

A)Increased electrical conductivity (doping)
B)Decreased structural integrity (fracture)
C)Enhanced thermal expansion (instability)
D)Reduced optical transparency (absorption)

💡 Explanation

Increased electrical conductivity is observed via doping, caused by substituting atoms that alter carrier concentration therefore altering the band gaps. This occurs because the added impurities contribute extra electrons/holes, rather than causing immediate structural damage or altered optical properties.

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