Which of the following statements is correct ab... - JAMB Chemistry 2018 Question
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
correct option: d
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