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White Tin Has an Electrical Conductivity That Decreases with Increasing

Question 138

Multiple Choice

White tin has an electrical conductivity that decreases with increasing temperature,and gray tin has an electrical conductivity that increases with increasing temperature.Therefore,white tin is classified as a(n) ________,and gray tin is classified as a(n) ________.


A) insulator,metal
B) metal,insulator
C) metal,semiconductor
D) semiconductor,metal

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