What is the correct electronic configuration of $Th$ $(Z=90)$?
- A$[Rn] \, 5f^0 \, 6d^2 \, 7s^2$
- B$[Rn] \, 5f^2 \, 6d^2 \, 7s^0$
- C$[Rn] \, 5f^2 \, 6d^0 \, 7s^2$
- D$[Rn] \, 5f^1 \, 6d^2 \, 7s^2$
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Similar Questions
In the lanthanide series,the element well known to exhibit $+4$ oxidation state is
Which of the following $f$-block elements exhibits the highest oxidation state?
Explain the lanthanoid contraction.
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View SolutionWhat is the general electronic configuration of actinoids?
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View SolutionWhich of the following statements are correct?
$I$. $P$ has the least negative electron gain enthalpy among $P, S, Cl$, and $F$.
$II$. In $Eu$ and $Yb$, lanthanoid contraction is not observed.
$III$. $Ce(OH)_3$ is the most basic among lanthanoid hydroxides.
$IV$. The radii of $Na$ and $Na^+$ are $95 \ pm$ and $186 \ pm$ respectively.
$I$. $P$ has the least negative electron gain enthalpy among $P, S, Cl$, and $F$.
$II$. In $Eu$ and $Yb$, lanthanoid contraction is not observed.
$III$. $Ce(OH)_3$ is the most basic among lanthanoid hydroxides.
$IV$. The radii of $Na$ and $Na^+$ are $95 \ pm$ and $186 \ pm$ respectively.
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