What is the magnetic moment (in B.M.) of {K_3 | vedclass

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(A) In ${K_3}[FeF_6]$,the oxidation state of $Fe$ is $+3$.$Fe^{3+}$ has the electronic configuration $[Ar]3d^5$.Since $F^-$ is a weak field ligand,the

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$5.91$

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(A) In ${K_3}[FeF_6]$,the oxidation state of $Fe$ is $+3$.$Fe^{3+}$ has the electronic configuration $[Ar]3d^5$.Since $F^-$ is a weak field ligand,the $5$ electrons in the $3d$ orbitals remain unpaired.Number of unpaired electrons $(n)$ $= 5$.The magnetic moment is calculated using the formula $\mu = \sqrt{n(n+2)} \ B.M.$$\mu = \sqrt{5(5+2)} = \sqrt{35} \approx 5.91 \ B.M.$

What is the magnetic moment (in $B.M.$) of ${K_3}[FeF_6]$?

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