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Compare the relative stability of +2 oxidation states in aqueous solutions for the metals having in their atoms the outer electron configurations, 3d^(3) 4s^(2), 3d^(6) 4s^(2) and 3d^(5) 4s^(2). |
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Answer» SOLUTION :The relative stability of +2 OXIDATION states for the metals is given below: `Mn^(2+)(3d^(5))gt V^(2+)(3d^(3))gt Fe^(2+)(3d^(6))` `3d^(5)4s^(2)gt 3d^(3)4s^(2)gt 3d^(6)4s^(2)` It is because `Mn^(2+)` has half-filled d-orbitals, therefore it is more STABLE. `Fe^(2+)` does not have half-filled d-orbitals. `V^(2+)` is more stable than `Fe^(2+)` because it has `t_(2G)` orbitals which is half-filled and thus more stable. |
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