WAEC Chemistry 2015 Objective — Question 13
Question 13 of 50 from the West African Examinations Council (WAEC) Chemistry 2015 Objective paper, with the correct answer and a full explanation.
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The number of unpaired electrons in an atom of an element ₈Q is
- A. 2Correct
- B. 4
- C. 6
- D. 8
Explanation
₈Q = 1s²2s²2p⁴. Drawing the orbital diagram for 2p⁴ shows two unpaired electrons.
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