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What is the difference between a period and a group on the periodic table
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What is the difference between a period and a group on the periodic table

User Al Katawazi
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Periods go left to right in a straight line. Anything in the same ROW is a Period.
Groups are up to down. These groups have the same number of outer shell electrons. There are 12 groups.
User Mdarwin
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4 votes
A period is the colums goi
ng down on the periodic table, and the groups are the rows going across
User John Walthour
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8.1k points
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