How is color related to a transferred electron

Compound Color Anion radius (A) Visible absorption band 

The information in the table can be used to make some general conclusions about a compound s color and the strength of the cation s pull on the transferred electron. Using this information, the color of a compound can be predicted. 

A larger anion radius results In a more pronounced color. What reason can you give for this fact  

Which do you think produces a more pronounced color, a high oxidation state for the anions or a low one Explain. 

Use the color wheel to predict the color of Bi203, the last compound on the list. 

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