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2 November, 23:33

Which of these elements had two valence electrons? hydrogen barium nitrogen Krypton bromine

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  1. 2 November, 23:42
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    Hello! The following elements that you have listed have these for their valence electron count.

    Hydrogen - 1 Barium - 2 Nitrogen - 3 Kyrpton - 2 Bromine - 5

    Of those provided you can see that both Barium and Kyrpton contain two valence electrons!
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