Which of the following metal ions is most likely to exist as a stable eight-coordinate complex with fluoride? cu2+ cu+ fe3+ ag3+ u4+

The metal ion that can most adequately exist in the form of 8-coordinate complex would be:

d). U⁴⁺  

Thus, option d is the correct answer.

Learn more about 'Fluoride' here:

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U⁴⁺  

Explanation:

Fluorine stabilizes metals in higher oxidation states with high M:F ratios.

Hard acids prefer to bind to hard bases.

U⁴⁺ is the hardest acid in the list and F⁻ is a hard base, so an eight-coordinate complex of U⁴⁺ is the most stable.

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explanation: