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The d- and f-Block Elements — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryThe d- and f-Block Elements1 Mark
Question
Write the electronic configuration of $Ni ^{2+}$.
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Answer

$Ni ^{2+}=1 s^2 2 s^2 2 p ^6 3 s^2 3 p ^6 3 d^8 4 s^0$

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