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Generally, the coordination number and the nature of the electronic absorption band (f → f transition) of lanthanide (III) ion in their complexes are, respectively,

Generally, the coordination number and the nature of the electronic absorption band (f → f transition) of lanthanide (III) ion in their complexes are, respectively, Correct Answer greater than 6 and sharp

Explanation:-

  • Electronic Absorption:-  When an electron absorbs energy from the surroundings and changes from its ground state to its excited state, the phenomenon is called electron absorption.
  • In spectroscopy, Absorption by an electron is always broad, but due to presence of f-orbital (f- orbital is deeply rooted), it is observed to be sharp.
  • In f-f transition the absorption band obtained is sharp.
  • Lanthanide ions generally form complexes with compounds with coordination numbers greater than six.​

 Thus, the answer is Greater than 6 and sharp.

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