When reading the periodic table there are Periods (rows) and Groups/ Families (columns).   Describe what the group number represents (the numbers at the top of each column)  Describe what the period number represents (the number on the far left side of each row)

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When reading the periodic table there are Periods (rows) and Groups/ Families (columns).  

Describe what the group number represents (the numbers at the top of each column) 

Describe what the period number represents (the number on the far left side of each row) 

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