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:

1. Silicon is a chemical element with the symbol Si and atomic number 14.
2. It is a metalloid and a semiconductor, making it an important material in the electronics industry.
3. It is the second most abundant element in the Earth's crust.
4. Silicon has various industrial applications, including in the production of semiconductors, glass, and solar panels.

[Silicon] Related Worksheets and Study Guides:

• Elements and the periodic tableScience • Seventh Grade
• Earth's CrustEarth Science • High School