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  • The number of 4f electrons in the ground state electronic configuration of is ________.[Atomic number of Gd = 64]Option: 1

The number of 4f electrons in the ground state electronic configuration of \mathrm{Gd^{2+}} is ________.[Atomic number of Gd = 64]
 

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The electronic configuration of \mathrm{Gd^{2+}} is \mathrm{\left [ Xe \right ]_{54}5d^{1}4f^{7}}.

This is due to greater stability of the half filled f- orbital configuration.

Thus, \mathrm{Gd^{2+}} has 7 electrons in the \mathrm{4f} orbital.

Hence, the correct answer is 7

Posted by

sudhir.kumar

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