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Title: Which element in the second row of the periodic table has six valence electrons and a valence of two? Post by: traggthuyy@gmai on Dec 24, 2018 Which element in the second row of the periodic table has six valence electrons and a valence of two?
Title: Which element in the second row of the periodic table has six valence electrons and a valence of two? Post by: arusha_momin on Dec 24, 2018 Content hidden
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