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d and f BLOCK ELEMENTS
Question #38884
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Why is the +3 oxidation state particularly stable for Scandium (Sc), leading to a low E°(M³⁺/M²⁺) value?
A. Sc³⁺ has a half-filled d-orbital
B. Sc³⁺ is stabilized by forming complexes
C. Sc has a very high third ionization energy
D. The formation of Sc³⁺ results in a stable noble gas electron configuration
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