Question

If a small amount of antimony is added to germanium crystal

• A. it becomes a p-type semiconductor
• B. the antimony becomes an acceptor atom
• C. there will be more free electrons than holes in the semiconductor
• D. its resistance is increased

Answer 1

Answer: (C)

there will be more free electrons than holes in the semiconductor

Answer 2

By addition of pentavalent impurity only $n$ -type of semiconductor are constructed