Silicon
Silicon is a chemical element with the symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic lustre. It is a tetravalent metalloid and a semiconductor. It is the second most abundant element in the Earth's crust, making up 27.7% of it by weight.
Properties of Silicon:
- Atomic Symbol: Si
- Atomic Number: 14
- Atomic Mass: 28.0855
- State at Room Temperature: Solid
- Color: Blue-grey metallic
- Classification: Metalloid
Uses of Silicon:
Silicon has a wide range of applications, including:
- Production of semiconductors for electronic devices
- Manufacture of glass, ceramics, and cement
- As an alloying agent in the production of aluminum and steel
- Used in solar panels and photovoltaic cells
Study Guide:
Here are some key points to remember about silicon:
- Silicon is a chemical element with the symbol Si and atomic number 14.
- It is a metalloid and a semiconductor, making it an important material in the electronics industry.
- It is the second most abundant element in the Earth's crust.
- Silicon has various industrial applications, including in the production of semiconductors, glass, and solar panels.
