yamifuentes4921
yamifuentes4921 yamifuentes4921
  • 13-11-2020
  • Chemistry
contestada

The columns in the periodic table are called
groups/families
O periods
O valence electrons
nucleus

Respuesta :

rylanwilliams
rylanwilliams rylanwilliams
  • 13-11-2020
the answer to your question is periods.
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