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27 September, 21:56

Deduce the formula of the ion that has a charge of 2 + with the same electron configuration as krypton.

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  1. 27 September, 22:02
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    Sr²⁺

    Explanation:

    Krypton has 36 electrons and an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6. An ion with a charge of 2 + and 36 electrons is Sr²⁺. Since it has the same amount of electrons, Sr²⁺ also has an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6.
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