Chemistry, 10.03.2021 19:50 anyone5382

What happens to the number of valence electrons as you move from element 1 to element 18 on the periodic table? A.
the number of valence electrons decreases then increases in a predictable sequence

B.
the number of valence electrons increases

C.
the number of valence electrons increases then decreases in a predictable sequence

D.
the number of valence electrons decreases

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