Which of the following ions is least likely to form colored compounds? A)Mn ²⁺ B)Cr ⁵⁺ C)Sc ³⁺ D)Fe ³⁺ E)Co ²⁺

Name: Which of the following ions is least likely to form colored compounds? A)Mn 2+ B)Cr 5+ C)Sc 3+ D)Fe 3+ E)Co 2+
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Scandium (Sc) is least likely to form colored compounds because it has only one unpaired electron in its d orbital, whereas Mn, Cr, Fe, and Co have multiple unpaired electrons which can lead to the formation of colored compounds.

Which of the Following Ions Is Least Likely to Form