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Q. $Nd ^{2+}=$

JEE MainJEE Main 2023The p-Block Elements - Part2

Solution:

$ Nd (60)=[ Xe ] 4 f ^4 5 d ^0 6 s ^2 $
$ Nd ^{2+}=[ Xe ] 4 f ^4 5 d ^0 5 s ^0$