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Chemistry, 04.12.2020 02:20 madisonworthington7

Which ion with a +2
charge has the electron configuration
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6?

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You know the right answer?
Which ion with a +2
charge has the electron configuration
1s2 2s2 2p6 3s2 3p6 4s2 3d10...
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