Electronic configuration of Gd (Z = 64) is | vedclass

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(B) The electronic configuration of $La$ $(Z = 57)$ is $[Xe] \, 5d^1 \, 6s^2$. Following this,the $4f$ orbitals are filled. For $Eu$ $(Z = 63)$,the co

Vedclass · Accepted Answer

$[Xe] \, 4f^7, \, 5d^1, \, 6s^2$

Vedclass · Answer

(B) The electronic configuration of $La$ $(Z = 57)$ is $[Xe] \, 5d^1 \, 6s^2$. Following this,the $4f$ orbitals are filled. For $Eu$ $(Z = 63)$,the configuration is $[Xe] \, 4f^7 \, 6s^2$,which represents a stable half-filled $f$-subshell. For the next element,$Gd$ $(Z = 64)$,the additional electron enters the $5d$ orbital instead of the $4f$ orbital to maintain the stability of the half-filled $4f^7$ configuration. Thus,the electronic configuration of $Gd$ $(Z = 64)$ is $[Xe] \, 4f^7 \, 5d^1 \, 6s^2$.

Electronic configuration of $Gd$ $(Z = 64)$ is

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