In which of the f-block elements is the numbe | vedclass

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

Question

(C) The electronic configuration of the given elements is as follows:$Ce$ $(Z=58)$: $[Xe] 4f^1 5d^1 6s^2$. Here,the $(n-2)f$ subshell is $4f$,which co

Vedclass · Accepted Answer

$Th$

Vedclass · Answer

(C) The electronic configuration of the given elements is as follows:$Ce$ $(Z=58)$: $[Xe] 4f^1 5d^1 6s^2$. Here,the $(n-2)f$ subshell is $4f$,which contains $1$ electron.$U$ $(Z=92)$: $[Rn] 5f^3 6d^1 7s^2$. Here,the $(n-2)f$ subshell is $5f$,which contains $3$ electrons.$Th$ $(Z=90)$: $[Rn] 5f^0 6d^2 7s^2$. Here,the $(n-2)f$ subshell is $5f$,which contains $0$ electrons.Therefore,$Th$ is the element where the number of electrons in the $(n-2)f$ subshell is zero.

In which of the $f$-block elements is the number of electrons in the $(n-2)f$ subshell zero?

Similar Questions

Identify the components of the alloy known as German Silver.

Highest $(+7)$ oxidation state is shown by

In which of the following cases,the stability of two oxidation states is correctly represented?

Paramagnetism is not exhibited by

Vedclass Test Series

Exam Paper Generator

Online Exam Module