Answer to Question #18825 in Inorganic Chemistry for anam ejaz
why d-block elements elements are called as outer transition elements and f-block elements as inner transition elements?
The d-block elements are called transition metals and have valence electrons in d orbitals. The inner transition elements are those who have their last 3 shells incompletely filled. The f block elements have their last 3 shells incompletely filled. That is why they are also called as inner transition elements.
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