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21 May, 12:59

What us the name of the horizontal rows in the periodic tabel? A) Groups B) Periods C) Metalloids D) Noble gasses

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  1. 21 May, 13:09
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    B because i looked it up
  2. 21 May, 13:23
    0
    Periods are horizontal; the vertical ones are groups, but can also be known as special families (Alkali, Noble Gasses, etc.)
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