Exercise 3
Directions Read the facts about carbon and answer the questions.
1. What is the symbol of the element carbon?
2. Where does its name come from?
3. What are isotopes?
4. What are the most common isotopes of carbon?
5. What is its phase at room temperature?
Answers & Comments
Answer:
1. Carbon (from Latin: carbo "coal") is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds.
Explanation:
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