The Paramagnetism in Complex Ions of Transition Metals Such as CoF₆³

question 40

Multiple Choice

The paramagnetism in complex ions of transition metals such as CoF₆^{3 -} or NiCl₄^{2 -} is a result of:

• A) the charge on the ions.
• B) electron pair donation by the ligands.
• C) unpaired d-orbital electrons on the metal ions.
• D) the square planar geometry possible with these metals.
• E) paired d-orbital electrons on the metal ions.

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