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

Chemistry
JAMB 2018

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

  • A. Elements in the same period have the same number of valence electrons
  • B. The valence electrons of the elements in the same period increase progressively across the period
  • C. Elements in the same group have the same number of electron shells
  • D. The non-metallic Properties of the elements tend to decrease across each period
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Correct Answer: Option B
Explanation

The valence electrons refer to the number of electrons in the outer shell. Across a period (horizontal row), the valence electron increases.

There is an explanation video available below.


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Explanation Video

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