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Are families or groups of elements similar due to similarities in their number of valence electrons?

April 26, 2017electrons elements Families groups similar Similarities valence

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Are families or groups of elements similar due to similarities in their number of valence electrons?

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number of valence electrons. For example, all elements in the first group (group IA, alkali metals) have one valence electron. When you organize the periodic table this way, groups emerge with similar characteristics. For example the alkali metals, which are all in the same group, react explosively with water.