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30 April, 10:28

Ow many valence electrons do atoms in group 1, group 2, group 15, group 16, group 17 have?

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  1. 30 April, 13:54
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    Group 1 (alkalis metals) - 1 valence electron

    Group 2 (alkaline earth metals) - 2 valence electrons

    Group 15 (pnictogens or nitrogen group)

    - 5 valence electrons

    Group 16 (chalcogens or oxygen group) - 6 valence electrons

    Group 17 (halogens) - 7 valence electrons
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