Question

Fe2+ is more stable than fe3 why??

Answer 1

The underlying principle involved in this is “ half-filled and fully-filled orbitals are extra stable .”

the d subshellhas five orbitals, which can acoomodate a total of 10 electrons.

Fe3+Fe3+ (3d5)(3d5)has half filled orbitals which provide extra stability to it because of symmetrical configuration. While Fe2+Fe2+(3d6)(3d6) has one electron more than the symmetrical arrangement. That is whyFe3+Fe3+is more stable than Fe2+Fe2+ .



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Answer 2

fe 2+ reffers to it should loose2 electrons to become stable
but when compared fe3 must be Balanced to become stable
so fe+2 is more stable than fe3.