WAEC Chemistry 2011 Objective — Question 12
Question 12 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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Which of the following elements can conveniently be placed in two groups in the periodic table?
- A. A. Carbon
- B. B. Copper
- C. C. HydrogenCorrect
- D. D. Oxygen
Explanation
Hydrogen can be conveniently placed in both group I and group VII. It fits group I because it has one electron; it fits group VII because it shows non-metallic properties.
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