Periodic trends Quiz
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5 questions, one answer each
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1. What happens to atomic radius from sodium to chlorine?
- A. It increases
- B. It decreases
- C. It stays the same
- D. It increases and then decreases
2. Why is a caesium atom larger than a lithium atom?
- A. It has fewer protons
- B. It has more electrons in its outer shell
- C. It has more electron shells
- D. Its nucleus repels the electrons
3. Which of these Group 7 elements is the most reactive?
- A. Chlorine
- B. Bromine
- C. Iodine
- D. They are equally reactive
4. What is the trend in metallic character down Group 4?
- A. It decreases
- B. It stays constant
- C. It decreases and then increases
- D. It increases
5. Which explains why potassium is more reactive than sodium?
- A. Potassium has more outer electrons
- B. Potassium's outer electron is further from the nucleus and is lost more easily
- C. Potassium has a smaller atomic radius
- D. Potassium has fewer electron shells