JAMB Chemistry 2011 Objective — Question 5

Question 5 of 49 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2011 Objective paper, with the correct answer and a full explanation.

Which of the following statements is correct about the periodic table?

A. A. Elements in the same period have the same number of valence electrons
B. B. The non-metallic properties of the elements tend to decrease across each period
C. C. The valence electrons of the elements increase progressively across the periodCorrect
D. D. Elements in the same group have the same number of electron shells

Explanation

Elements in the same period have the same number of electron shells, and the number of valence electrons increases progressively across the period.

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