JAMB Chemistry 2007 Objective — Question 10
Question 10 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2007 Objective paper, with the correct answer and a full explanation.
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The elements that belong to the third period of the periodic table are
- A. B, C, N and O
- B. Na, Mg, S and ArCorrect
- C. Li, Be, Al and P
- D. Na, P, O and Cl
Explanation
Na, Mg, S and Ar all have three electron shells, placing them in period 3.
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