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

Which element from the following exhibits various different oxidation states from $+2$ to $+7$?

Which of the following elements exhibits ferromagnetic properties?

Which of the following sets of ions contains colored ions?
$(1) \ Cu^{2+}$ $(2) \ Ti^{4+}$ $(3) \ Co^{2+}$ $(4) \ Fe^{3+}$

Which of the following pairs of species has the same electronic configuration?

Vedclass Test Series

Exam Paper Generator

Online Exam Module