-F block elements which contain lanthanides and actinides have their own location separate from the main table primarily to conserve space as there is no space to keep f-block elements (so clipped together).
-They are located under the bottom of the table as following :![](https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcS7adcM327AJk43NZFZTA0TVcoY11zFp25BrQ&usqp=CAU)