Semiconductors Quiz

What are semiconductors primarily made of?

• Elements

• Molecules

• Individual atoms

• Compounds

How many electrons surround each atom in a semiconductor?

• 10

• 8

• 6

• 4

What type of bond consists of two atoms sharing a pair of electrons?

• Ionic bond

• Metallic bond

• Covalent bond

• Hydrogen bond

Which materials are considered undoped semiconductors?

• Copper and Gold

• Silicon and Germanium

• Silicon and Oxygen

• Aluminum and Zinc

What happens when impurities are added to a pure semiconductor?

• It becomes a superconductor

• It becomes a metal

• Its conductivity changes

• Its color changes

What is the effect of adding small amounts of selected impurities to a pure semiconductor?

• Decreases conductivity

• Increases conductivity

• Changes the atomic structure

• No effect

What is the lattice structure of semiconductors made up of?

• Molecules

• Ions

• Individual atoms

• Polymers