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Savagequeenrules

Answer:

A period is a horizontal row of the periodic table.A group is a vertical column of the periodic table, based on the organization of the outer shell electrons. There are a total of 18 groups.

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A period is a horizontal row of the periodic table. There are seven periods in the periodic table, with each one beginning at the far left.

A group is a vertical column of the periodic table, based on the organization of the outer shell electrons.

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