Which of the following has 6 unpaired f-elect | vedclass

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

Question

(D) To find the number of unpaired $f-$electrons,we write the electronic configuration of the lanthanide ions:$1$. $Tm^{+3} (Z = 69)$: The neutral $Tm

Vedclass · Accepted Answer

$Tb^{+3} (Z = 65)$

Vedclass · Answer

(D) To find the number of unpaired $f-$electrons,we write the electronic configuration of the lanthanide ions:$1$. $Tm^{+3} (Z = 69)$: The neutral $Tm$ is $[Xe] 4f^{13} 6s^2$. $Tm^{+3}$ is $[Xe] 4f^{12}$. In $4f^{12}$,there are $2$ unpaired electrons.$2$. $Nd^{+3} (Z = 60)$: The neutral $Nd$ is $[Xe] 4f^4 6s^2$. $Nd^{+3}$ is $[Xe] 4f^3$. In $4f^3$,there are $3$ unpaired electrons.$3$. $Dy^{+3} (Z = 66)$: The neutral $Dy$ is $[Xe] 4f^{10} 6s^2$. $Dy^{+3}$ is $[Xe] 4f^9$. In $4f^9$,there are $5$ unpaired electrons.$4$. $Tb^{+3} (Z = 65)$: The neutral $Tb$ is $[Xe] 4f^9 6s^2$. $Tb^{+3}$ is $[Xe] 4f^8$. In $4f^8$,there are $6$ unpaired electrons.Thus,$Tb^{+3}$ has $6$ unpaired $f-$electrons.

Which of the following has $6$ unpaired $f-$electrons?

Similar Questions

Arrange the following metal complexes/compounds in the increasing order of spin-only magnetic moment. Presume all three are high-spin systems.
(Atomic numbers: $Ce = 58$,$Gd = 64$,and $Eu = 63$.)
$(a)$ $(NH_4)_2[Ce(NO_3)_6]$
$(b)$ $Gd(NO_3)_3$
$(c)$ $Eu(NO_3)_3$
Answer is:

The transition element ( $\approx 5 \%$ ) present with lanthanoid metal in misch metal is

$4f^2$ electronic configuration is found in

Which among the following lanthanoids shows only $+3$ oxidation state?

Lanthanides and actinides resemble in

Vedclass Test Series

Exam Paper Generator

Online Exam Module