posted by keith .
The complex ions of Zn2+ are colorless. Why?
Keith, Natali, Cindy, Joel, or whoever,
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Think unpaired vs paired electrons?
Since Zn2+ is a d10 ion, it does not absorb visible light even though the “d orbital” splittings are correct for absorbing visible wavelengths. Meaning that all d orbitals are full therefore there is no space for the electrons to move resulting in a colorless compound