Question
Chemistry Question on p -Block Elements
A group of 13 element if added in small amounts to Ge, then the type of semiconductor formed is
A
n-type semiconductor
B
p-type semiconductor
C
super semiconductor
D
Both [a] and [b]
Answer
p-type semiconductor
Explanation
Solution
Ge is tetravaent while group - 13 element has three electrons in valence shell thus there is positive charge (p) hence p-type semiconductor is formed.