Question

Write the ground-state electron configuration for「 T T T 쫓 Paragraph Arial V 3 (12pt) Tr T,


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Answer #1

Number of electron in I = 53

Electronic configuration is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p5

Noble gas having lesser electron than I and closest to it is Krypton (Kr)

Number of electron in Kr = 36

electronic configuration of Kr is: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6

So, electronic configuration of I in noble gas form is: [Kr] 4d10 5s2 5p5

So, we need to add 1 electrons more

Electronic configuration is [Kr] 4d10 5s2 5p6

Answer:

[Kr] 4d10 5s2 5p6

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