Group 1 — The Alkali Metals Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. How many electrons are in the outer shell of a Group 1 metal atom?
- A. 1
- B. 2
- C. 7
- D. 8
2. What gas is produced when sodium reacts with water?
- A. Oxygen
- B. Carbon dioxide
- C. Hydrogen
- D. Chlorine
3. What is the trend in reactivity going down Group 1?
- A. Reactivity decreases
- B. Reactivity increases
- C. Reactivity stays the same
- D. Reactivity increases then decreases
4. Sodium is added to water and fizzes, producing a colourless gas and an alkaline solution. Which equation correctly represents this reaction?
- A. Na + H2O → NaH + O2
- B. 2Na + 2H2O → 2NaOH + H2
- C. Na + O2 → Na2O
- D. 2Na + Cl2 → 2NaCl
5. A student compares the reactions of lithium and potassium with water and finds potassium reacts far more violently. Using ideas about atomic structure, which explanation is correct?
- A. Potassium has more protons, making its nucleus repel water more strongly
- B. Potassium's outer electron is further from the nucleus and more shielded, so it is lost more easily
- C. Potassium has two outer electrons compared with lithium's one
- D. Lithium's larger atomic radius makes it less reactive