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← ScienceWhich outcome results from vacancy defects within a crystal lattice?
A)Increased ionic conductivity and diffusion✓
B)Decreased electron mobility in semiconductors
C)Enhanced piezoelectric stress-charge constant
D)Optimized thermal expansion through the material
💡 Explanation
Increased ionic conductivity occurs because vacancy diffusion provides pathways for ions to move more easily through point defects within a lattice. The mechanism is vacancy diffusion; therefore, ionic conductivity rises,rather than electron mobility decreasing, since electronic properties depend on substitutional impurities under most material applications.
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