Why are the d and f orbitals in transition metals considered localized?

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Summary:

Why are d and f orbitals localized?
Why d and f orbitals in transition metals considered localize?
Is it an experimetal result that d and f orbitals are more near to nuclea than s orbital in transition metals or there is another reason for considering them localized in a solid?
 

Answers and Replies

  • #2
DrDu
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d and f orbitals are orbital in inner shells (n-1 and n-2, respectively), hence they are more localized in the inner of the atoms. The precise size depends also on the filling of the sub-shells. electrons in d- and f- orbitals hardly shield each other from the nuclear charge. Hence, as the filling of the sub-shell increases, the electrons see an increasingly higher effective nuclear charge, which leads to a shrinking of the obitals. Therefore, e.g. the noble metals have relatively low oxidation states and are little reactive in comparison to the earlier elements in the d-block.
 
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Thanks
 

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