What do the columns on a periodic table of elements represent

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asked Apr 18, 2019 181k views

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Faridz · Answer 1 · 2019-04-23T04:56:27+0000

Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons.

What do the columns on a periodic table of elements represent

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