Silicon - The Internet's Favorite Element: Crash Course Chemistry

What is the primary role of silicon in semiconductors?

• To provide insulation in electrical applications

• To act as a conductor of electricity

• To form the basis of diodes and transistors

• To create magnetic fields

How is the chemical formula of silica represented?

• Si2O4

• SiO3

• SiO

• SiO2

What is the main difference between glass and quartz?

• Glass is a true crystal, while quartz is not

• Quartz is more flexible than glass

• Quartz has a regular structure, while glass is amorphous

• Glass is an electrical conductor, while quartz is an insulator

What is the purpose of doping in silicon crystals?

• To change its color

• To enhance its insulating properties

• To increase the crystal's size

• To alter its electrical conductivity

What type of semiconductor is created by adding elements with more electrons than silicon?

• p-type

• x-type

• n-type

• z-type

How does a diode function in an electrical circuit?

• It allows current to flow in both directions

• It amplifies the current

• It blocks all current flow

• It allows current to flow in one direction only

What is the significance of transistors in electronics?

• They convert AC to DC

• They switch electrical signals on and off

• They store electrical energy

• They provide mechanical support