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10 October, 17:17

1. The vertical columns on the periodic table are called groups, how many groups are

there on the periodic table?

midi

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Answers (2)
  1. 10 October, 17:29
    0
    A group is a vertical column of the periodic table, based on the organization of the outer shell electrons. There are a total of 18 groups.
  2. 10 October, 18:37
    0
    18

    Explanation:

    the numbers at the top tell you
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