Questions/D & F Block/Why are $$E^\circ$$...
Standard Electrode Potentials (E°)D & F Block

Why are EE^\circ values for Mn, Ni, and Zn more negative than the trend suggests?.

Expert Answer

Mn & Zn: Stability of half-filled ( d5d^5 ) and filled ( d10d^{10} ) subshells. Ni: Exceptionally high negative hydration enthalpy.

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