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22 October, 11:47

Groups or families in the periodic table have what in common

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  1. 22 October, 13:12
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    Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons.
  2. 22 October, 13:19
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    Elements in each group have the same number of electrons in the last ring. They are also called Valence Electrons.
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