1.

The stability of ferric ionis due to

Answer»

half-filled d-orbitals
half-filled f-orbitals
compltetly filled d-orbitals
completely filledf-orbitals

Solution :`FE(Z= 26) = 3d^(6)4S^(2)`
`:. Fe^(3+) = 3d^(5)` . Thus`,Fe^(3+)` ION isquite stabledue to half-filledd-orbitals.


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