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 luster. It is a member of group 14 in the periodic table, along with carbon, germanium, tin, and lead. Silicon is the second most abundant element in the Earth's crust, making up 27.7% of the crust by weight.
Properties of Silicon
- Atomic Number: 14
- Atomic Mass: 28.0855
- Boiling Point: 3265°C
- Melting Point: 1414°C
- Density: 2.329 g/cm³
- Electron Configuration: [Ne] 3s2 3p2
- Crystal Structure: Diamond cubic
Uses of Silicon
Silicon has many important uses in modern technology, including:
- Production of semiconductors for electronic devices
- Manufacture of solar cells for solar panels
- Production of silicon wafers for integrated circuits
- Use in the construction of glass, ceramics, and bricks
- Additive in aluminum alloys for the automotive industry
Study Guide
When studying silicon, it is important to understand its properties, its place in the periodic table, and its uses in various industries. Here are some key points to focus on:
- What is the atomic number of silicon?
- Describe the crystal structure of silicon.
- Explain the importance of silicon in the production of semiconductors.
- Discuss the role of silicon in the manufacture of solar cells.
- How does silicon contribute to the construction industry?
Understanding these concepts will give you a strong foundation in the study of silicon and its significance in science and technology.
[Silicon] Related Worksheets and Study Guides:
.◂Science Worksheets and Study Guides Fourth Grade. Our Solar system and beyond
Study Guide
Our Solar system and beyond 
Worksheet/Answer key
Our Solar system and beyond Worksheet/Answer key
Our Solar system and beyond Worksheet/Answer key
Our Solar system and beyond Vocabulary/Answer key
Our Solar system and beyond Vocabulary/Answer key
Our Solar system and beyond Vocabulary/Answer key
Our Solar system and beyond
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
Concepts of Earth Science (SD1, SD2, SD3, SD4)
The student demonstrates an understanding of cycles influenced by energy from the sun and by Earth's position and motion in our solar system by recognizing changes to length of daylight over time and its relationship to seasons.
The student demonstrates an understanding of the theories regarding the origin and evolution of the universe by recognizing that stars are like the sun but are so far away that they look like points of light.
The student demonstrates an understanding of the theories regarding the origin and evolution of the universe by recognizing that objects have properties, locations, and movements that can be observed and described.
Concepts of Earth Science: A student should understand and be able to apply the concepts, processes, theories, models, evidence, and systems of earth and space sciences. A student who meets the content standard should:
Develop an understanding of the cyclical changes controlled by energy from the sun and by Earth's position and motion in our solar system.