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Groups are the vertical columns on the Periodic Table. There are 18 groups on the periodic table.
Group 1 = Alkali Metals
Group 2 = Alkaline Earth Metals
Groups 3-12 = Transition Metals
Group 17 = Halogens
Group 18 = Noble gases


the table is used in chemistry to list in order like elements----long time since general chemistry

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16y ago

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