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Q.
The names transition and inner transition metals are used to indicate the elements of:
The d-and f-Block Elements
Solution:
In electron configuration of d-block element last electron filled in $\left(n - 1\right)$ d subshell & these element placed between s-block and p-block element in periodic table. In f-block element, last electron filled in $\left(n - 2\right)$ f-subshell and these elements are placed in third group in transition element. These elements are known as inner transition metal elements.