WAEC Chemistry 2011 Objective — Question 6
Question 6 of 50 from the West African Examinations Council (WAEC) Chemistry 2011 Objective paper, with the correct answer and a full explanation.
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Rare gases are stable because they
- A. A. contain equal number of protons and neutrons
- B. B. contain more electrons than protons
- C. C. are chemically active
- D. D. have octet structureCorrect
Explanation
Rare (noble) gases owe their chemical stability to their octet structure (a full outer shell of 8 electrons, or 2 for helium).
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