WAEC Chemistry 2024 Objective — Question 42
Question 42 of 50 from the West African Examinations Council (WAEC) Chemistry 2024 Objective paper, with the correct answer and a full explanation.
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42. An atom of an element in the ground state contains 8 valence electrons. The element is considered as a
- A. metal
- B. semi-metal
- C. noble gasCorrect
- D. halogen
Explanation
A complete octet of valence electrons (8, except He with 2) is characteristic of the stable, chemically inert noble gases.
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