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Actinide colour and complex formation |
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Answer» Actinides IONS are usually colored. The color depends upon the number of 5f ELECTRONS, ions with 5f 0 electrons and 5f 7 electrons are colorless. The color is due to f-f electronic transitions. ==>Complex FORMATION of Actinide elements The degree of complex formations decreases in the order: An+4 > AnO2+2 > An+3 > AnO2+ The complexing power of DIFFERENT singly charged and doubly charged anions follows the order: Singly charged anions: F-> No3-> Cl- Doubly charged anions: Co3-2> Ox-2> So4-2 Actinides also form complexes with a large number of organic substances. |
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