Explain $f$-block elements of the periodic table in detail.

(N/A) The two rows of elements at the bottom of the Periodic Table,called the Lanthanoids,$Ce$ $(Z = 58)$ to $Lu$ $(Z = 71)$ and Actinoids,$Th$ $(Z = 90)$ to $Lr$ $(Z = 103)$,are characterized by the outer electronic configuration $(n-2)f^{1-14}(n-1)d^{0-1}ns^{2}$.
The last electron added to each element is filled in the $f$-orbital.
These two series of elements are hence called the Inner-Transition Elements ($f$-Block Elements).
They are all metals,and within each series,the properties of the elements are quite similar.
The chemistry of the early actinoids is more complicated than the corresponding lanthanoids due to the large number of oxidation states possible for these actinoid elements.
Actinoid elements are radioactive. Many of the actinoid elements have been synthesized only in nanogram quantities or less via nuclear reactions,and their chemistry is not fully studied.
The elements after uranium $(Z = 92)$ are called Transuranium Elements.