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← ScienceWhich outcome occurs when impurity atoms mismatch metallic tungsten's lattice?
A)Enhanced electrical resistivity occurs overall✓
B)Increased thermal conductivity dominates later
C)Yield strength significantly decreases locally
D)Grain boundary mobility exhibits increases
💡 Explanation
Increased electrical resistivity occurs because phonon scattering raises overall, thus reducing electron flow in the metal; this causes the phenomenon `Umklapp scattering`. Therefore, resistivity increases, rather than conductivity, due to disrupted lattice periodicity.
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