How would one classify a germanium crystal doped with arsenic?
A)conductor
B)n-type semiconductor
C)p-type semiconductor
D)insulator

Question

Quizplus · Accepted Answer

When germanium crystal is doped with arsenic, it becomes an n-type semiconductor as arsenic has 5 valence electrons (4 for Ge and 1 extra for As) and serves as a donor impurity. This creates an excess of free electrons in the crystal, making it a good conductor.

How Would One Classify a Germanium Crystal Doped with Arsenic