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

Question

Quizplus · Accepted Answer

White tin (alpha tin) is a semiconductor because its electrical conductivity decreases with increasing temperature. On the other hand, grey tin (beta tin) is a metal because its electrical conductivity increases with increasing temperature.

White Tin Has an Electrical Conductivity That Decreases with Increasing