When a semiconductor material is mixed with an impurity that has ____ valence electrons, such as arsenic or antimony, the lattice structure has an excess of electrons.
A) two
B) three
C) five
D) seven

Question

Quizplus · Accepted Answer

When a semiconductor material is mixed with an impurity that has five valence electrons, such as arsenic or antimony, it creates an n-type semiconductor. This is because the extra electron from the fifth valence electron becomes a free electron, increasing the material's conductivity.

When a Semiconductor Material Is Mixed with an Impurity That