oterianno oterianno
  • 04-11-2014
  • Chemistry
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which elements make up a family

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Renan1234 Renan1234
  • 04-11-2014
The columns going up and down on the periodic table of elements are familys
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vivio
vivio vivio
  • 04-11-2014
The columns in the periodic table. They're also known as groups.
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