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Where do you find periods and groups in the periodic table?
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Where do you find periods and groups in the periodic table?

User TerDale
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groups are the columns
1-8 starting with group 1 and 2 then a huge block in the middle named transition metals then group 3 which starts from boron to group 8 which starts with helium

the periods are the rows (1-7)
User Ammy Kang
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