Which statement is incorrect for the electronic configuration $[Xe]\, 4f^{7}\, 5d^{1}\, 6s^{2}$?
- AIt is placed in the $d-$block,$IIIB$ group,$6^{th}$ period.
- BIt is a natural element.
- CIt has the maximum number of unpaired $e^{-}$ in the lanthanoid series.
- DIt is $Gd$.
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Similar Questions
Which one of the following ions exhibits paramagnetic property?
Which among the following lanthanoids shows only $+3$ oxidation state?
Identify the non-radioactive element from the following.
On the basis of Lanthanoid contraction,explain the following :
$(i)$ Nature of bonding in $La_2O_3$ and $Lu_2O_3$.
$(ii)$ Trends in the stability of oxo salts of lanthanoids from $La$ to $Lu$.
$(iii)$ Stability of the complexes of lanthanoids.
$(iv)$ Radii of $4d$ and $5d$-block elements.
$(v)$ Trends in acidic character of lanthanoid oxides.
$(i)$ Nature of bonding in $La_2O_3$ and $Lu_2O_3$.
$(ii)$ Trends in the stability of oxo salts of lanthanoids from $La$ to $Lu$.
$(iii)$ Stability of the complexes of lanthanoids.
$(iv)$ Radii of $4d$ and $5d$-block elements.
$(v)$ Trends in acidic character of lanthanoid oxides.
Difficult
View SolutionAssertion : Magnetic moment of $Dy^{3+}$ is highest among lanthanoids.
Reason : Orbital motion contributes to the magnetic moment.
Reason : Orbital motion contributes to the magnetic moment.
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