IGNOU BCHCT 137 2026 - Determine how many unpaired electrons are contained in the following o

Question

Determine how many unpaired electrons are contained in the following octahedral complex ions: [Co(CN)₆]^3-, [CoF₆]^3- Estimate the magnetic moments of these complexes.

10 Jan 2026

Answer :

Word Count : 242

Cobalt has atomic number 27 and the electronic configuration [Ar] 3d⁷4s². In the +3 oxidation state, cobalt loses two 4s electrons and one 3d electron to give Co³⁺ with a 3d⁶ configuration. In octahedral complexes, the arrangement of electrons depends strongly on the nature of the ligands, because ligands determine the magnitude of

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