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

List-$I$ ($\text{Transition metal ion}$)	List-$II$ ($\text{Spin only magnetic moment (B.M.)}$)
$A$. $Ti^{3+}$	$I$. $3.87$
$B$. $V^{2+}$	$II$. $0.00$
$C$. $Ni^{2+}$	$III$. $1.73$
$D$. $Sc^{3+}$	$IV$. $2.84$

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

Similar Questions

Match List-$I$ with List-$II$:
List-$I$ ($\text{Transition metal ion}$) List-$II$ ($\text{Spin only magnetic moment (B.M.)}$)
$A$. $Ti^{3+}$ $I$. $3.87$
$B$. $V^{2+}$ $II$. $0.00$
$C$. $Ni^{2+}$ $III$. $1.73$
$D$. $Sc^{3+}$ $IV$. $2.84$

Choose the correct answer from the options given below:

Pairs of elements with the same number of electrons in their respective $4f$ orbital are [Atomic number: $Eu-63, Gd-64, Dy-66, Ho-67, Tm-69, Yb-70, Lu-71, Hf-72$]. Choose the correct answer from the options given below:

The $d-$block element which is a liquid at room temperature,has a high specific heat,lower reactivity than hydrogen,and its chloride $(MX_2)$ is volatile on heating is

The ability of transition metal ions to form complex compounds is due to:

The correct order of density for the $3d$ series elements is:

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