The effective atomic number of Iron (Z = 26) | vedclass

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Question

(C) Key Idea: The total number of electrons which the central metal ion appears to possess in the complex,including those gained by it in bonding,is c

Vedclass · Accepted Answer

$35$

Vedclass · Answer

(C) Key Idea: The total number of electrons which the central metal ion appears to possess in the complex,including those gained by it in bonding,is called the effective atomic number $(EAN)$ of the central metal ion.In the given complex ion $[Fe(CN)_6]^{3-}$,the $Fe$ is in $+3$ oxidation state.Atomic number of $Fe = 26$.The number of electrons in $Fe^{3+} = 26 - 3 = 23$.Each of the six $CN^-$ ligands donates a pair of electrons (total $6 	imes 2 = 12$ electrons).Therefore,$EAN = 23 + 12 = 35$.

The effective atomic number of Iron $(Z = 26)$ in $[Fe(CN)_6]^{3-}$ is

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