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Calculate the Effective Atomic Number (EAN) of iron in . (Atomic number of Fe = 26)Coordination Compounds Chemistry Question

Question

Calculate the Effective Atomic Number (EAN) of iron in $K_4[Fe(CN)_6]$. (Atomic number of Fe = 26)

Answer: C

💡 Solution & Explanation

Fe is in $+2$ oxidation state. $EAN = Z - \text{O.S.} + 2(\text{C.N.}) = 26 - 2 + 2(6) = 24 + 12 = 36$, matching the noble gas Krypton.

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