The pair of ions with paramagnetic nature and | vedclass

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

Question

(C) To determine the correct pair,we analyze the electronic configuration and number of electrons for each ion:$1$. $Lu^{3+}$ $(Z=71)$: $[Xe] 4f^{14}$

Vedclass · Accepted Answer

$Eu^{2+}, Gd^{3+}$

Vedclass · Answer

(C) To determine the correct pair,we analyze the electronic configuration and number of electrons for each ion:$1$. $Lu^{3+}$ $(Z=71)$: $[Xe] 4f^{14}$,electrons = $68$,diamagnetic.$2$. $Yb^{2+}$ $(Z=70)$: $[Xe] 4f^{14}$,electrons = $68$,diamagnetic.$3$. $Eu^{3+}$ $(Z=63)$: $[Xe] 4f^{6}$,electrons = $60$,paramagnetic.$4$. $Pm^{2+}$ $(Z=61)$: $[Xe] 4f^{5}$,electrons = $59$,paramagnetic.$5$. $Eu^{2+}$ $(Z=63)$: $[Xe] 4f^{7}$,electrons = $61$,paramagnetic.$6$. $Gd^{3+}$ $(Z=64)$: $[Xe] 4f^{7}$,electrons = $61$,paramagnetic.$7$. $La^{3+}$ $(Z=57)$: $[Xe]$,electrons = $54$,diamagnetic.$8$. $Ce^{4+}$ $(Z=58)$: $[Xe]$,electrons = $54$,diamagnetic.Comparing the options,$Eu^{2+}$ and $Gd^{3+}$ both have $61$ electrons and both possess $7$ unpaired electrons in the $4f$ orbital,making them paramagnetic.

List-$I$ (Transition metal,$M$)	List-$II$ ($E_{M^{2+}/ M}^{\ominus}$ in $V$)
$A$. $Ni$	$I$. $-1.18$
$B$. $Mn$	$II$. $-0.91$
$C$. $Fe$	$III$. $-0.25$
$D$. $Cr$	$IV$. $-0.44$

The pair of ions with paramagnetic nature and same number of electrons is

Similar Questions

Which of the following pairs of ions are colourless?

Choose the correct statement regarding transition elements.

Match the following:

List-$I$ (Transition metal,$M$) List-$II$ ($E_{M^{2+}/ M}^{\ominus}$ in $V$)

$A$. $Ni$ $I$. $-1.18$

$B$. $Mn$ $II$. $-0.91$

$C$. $Fe$ $III$. $-0.25$

$D$. $Cr$ $IV$. $-0.44$

The correct answer is

Electronic configuration of $Gd$ $(Z = 64)$ is

The magnetic moment of $2.84 \, B.M.$ is exhibited by which of the following ions? (Atomic numbers: $Ni = 28, Ti = 22, Cr = 24, Co = 27$)

Vedclass Test Series

Exam Paper Generator

Online Exam Module