Question

An n type semiconductor material is produced by adding impurity atom to a pure semiconductor material. How many valence e- will be there in outer shell? What will the net charge the on the semiconductor material after adding the inpurity atoms?

Answer 1

An n-type semiconductor is produced by adding impurity atoms with one more valence electron to a pure semiconductor material.

Step-by-step explanation:

An n-type semiconductor material is produced by adding impurity atoms to a pure semiconductor material.

When impurity atoms are added to a semiconductor the net charge on the semiconductor material remains neutral. This is because each impurity atom donate an electron to the conduction band but also introduces a positive charge due to the presence of the ionized impurity atom.