Gerber5108 Gerber5108
  • 18-06-2020
  • Chemistry
contestada

groups run up and down or top to bottom while periods Run side to side or cross .

true or false? ​

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emily7457
emily7457 emily7457
  • 18-06-2020
Answer: True, Groups run down (colomns), Periods run across (lines)
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