differentiate between groups and periods in detail
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a period is a horizontal row of the periodic table , there are seven periods in 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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answer .. groups and periods are are two ways of categorising elements in the periodic table periods are horizontal rose ( across) d periodic table. while groups are vertical colums ( down ) the table . atomic number increases as you move down a group or across a period.
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