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Predict Which of the following transition metal ions has a color: Cr3+ Cd2+ Hg+2 V2+. Explain

User Sildoreth
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Answer:

Cr3+ is green and V2+ is purple. Cr3+ and V2+ are both d3 so there can be a lot of movement between energy levels to produce colored light. Cd2+ and Hg2+ are both d10 (full d orbital, much less electron movement).

Step-by-step explanation:

User Arvind
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