Chemistry, 27.06.2019 01:30, BustD0wnAnt

Which of the following statements provides the best explanation for the many chemical similarities between two elements in a main group? (note: only one answer (a) they have similar atomic mass values. (b) both have the same number of valence electrons. (c) they have the same number of protons. (d) they are in the same period.

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Which of the following statements provides the best explanation for the many chemical similarities b...