Amongst the given elements,which one exhibits | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The lanthanoids exhibit a common oxidation state of $+3$. However,$Ce$ (Cerium,$Z=58$) has an electronic configuration of $[Xe] 4f^1 5d^1 6s^2$. U

Vedclass · Accepted Answer

$Ce$

Vedclass · Answer

(A) The lanthanoids exhibit a common oxidation state of $+3$. However,$Ce$ (Cerium,$Z=58$) has an electronic configuration of $[Xe] 4f^1 5d^1 6s^2$. Upon losing four electrons,it attains the stable noble gas configuration of $Xe$. Thus,$Ce^{4+}$ is a stable ion in an aqueous medium,making it a strong oxidizing agent. Other elements like $Eu^{2+}$ and $Yb^{2+}$ are stable,while $Tl$ is a post-transition metal that typically shows $+1$ and $+3$ oxidation states.

Amongst the given elements,which one exhibits a $+4$ oxidation state in an aqueous medium?

Similar Questions

Which element from the following has a half-filled $f$ orbital in the $+3$ oxidation state?

Which element in the lanthanoids is radioactive?

The number of $f$ electrons in the ground state electronic configuration of $Np$ $(Z=93)$ is ....... .

What are the elements of the $f$-block called?

Which of the following lanthanoids exhibits no effective magnetic moment in the $+3$ oxidation state?

Vedclass Test Series

Exam Paper Generator

Online Exam Module