Meghte4rezjenas3cafl Meghte4rezjenas3cafl

27-03-2017
Chemistry

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How are the groups titled in the periodic table?

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MohammadHaisam MohammadHaisam

27-03-2017

By the number of Electrons in the valence shell if 1=group 1 if 2 its group 2 and so on Valence means outermost shell

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