Explain in brief about the f-block elements. - Vidyadip

Question

Explain in brief about the $f-$block elements.

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Answer

The elements present in $f-$block are all metals and are placed in the two rows called lanthanide series $(_{58}Ce \ to \ _{71}Lu)$ and actinide series $(_{90}Th \ to \ _{103}Lr).$
The lanthanides are also known as rare earth elements while the actinide elements beyond $_{92}U$ are called transuranium elements.
All the transuranium elements are manmade and radioactive.
The last electron of the elements of these series is filled in the $(n-2)f$ subshell, and therefore, these are called inner transition elements.
These elements have very similar properties within each series.

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