What is the correct electronic configuration of the central atom in $K_{4} [F e (C N)_{6}]$ based on crystal field theory?

t_{2 g}^{4}

e_{g}^{2}

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t_{2 g}^{6}

e_{g}^{0}

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e_{g}^{3}

t_{2 g}^{3}

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e_{g}^{4}

t_{2 g}^{2}

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Solution

The correct option is B $t_{2 g}^{6}$ $e_{g}^{0}$
$F e$ ground state: [Ar] $4 s^{2}$ $3 d^{6}$
$F e^{2 +}$ : [Ar] $4 s^{0}$ $3 d^{6}$

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Similar questions

Q. What is the correct electronic configuration of the central atom in

K_{4} [F e (C N)_{6}]

based on crystal field theory?

Using crystal field theory, draw energy level diagram, write electronic configuration of the central metal atom/ion and determine the magnetic moment value in the following
(a) $[C o F_{6}]^{3 -}, [C o (H_{2} O)_{6}]^{2 +}, [C o (C N)_{6}]^{3 -}$
(b) $F e F_{6}^{3 -}, [F e (H_{2} O)_{6}]^{2 +}, [F e (C N)_{6}]^{4 -}$

Give the electronic configuration of the following complexes on the basis of crystal field splitting theory. $[C o F_{6}]^{3 -}, [F e (C N)_{6}]^{4 -}$ and $[C u (N H_{3})_{6}]^{2 +} .$