Question

distinguish between groups and periods​

Answer 1

Answer:

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Explanation:

A period is a horizontal row of the periodic table. A group is a vertical row of the periodic table.Periods are horizontal rows while the groups are the vertical columns on the periodic table. There are 7 periods and 18 groups

Answer 2

Answer:

A period is a horizontal row of the periodic table. A group is a vertical row of the periodic table.