The ground-state electron configuration for an atom of indium is: O a. [Ar]4s23d104p1 o b. [Kr15s25p6445...

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Answer 1

Answer #1

The atomic number of Indium is 49

Noble gas before Indium is Krypton (Kr) atom number 36

Therefore electronic configuration of Indium=[Kr] 4d10 5s2 5p1

That is Option d

Answer 2

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