Elements in the same group or family share important?
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The periodic table also has a special name for its vertical columns. Each column is called a group. The elements in each group have the same number of electrons in the outer orbital.They are the electrons involved in chemical bonds with other elements.
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The elements in each group the same number of electrons in the outer orbital.Those outer electrons are also called valence electrons.They are the electrons involved in chemical bonds with other elements
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