What are the lanthanides and actinides found on the periodic table?

Answer 1

They are found below the Periodic Table because they would take up too much room in the periodic table

Answer 2

Lanthanides and actinides are under period six and seven eventhough they were part of period six and seven. the best way to find Lanthanides and actinides is to find period six or seven. If you go to Barium or Radium, you will have a line that connects that elements and goes down and leads to a another two lines with names of elements. The top one is Lanthanides and bottom is the actinides.

Answer 3

The Lanthalides, with atomic numbers 57 to 71, are between Barium and Hafnium. The Actinides, numbers 89 to 103, are between Radium and Rutherfordium. In the layout of the table, the first member of each group (after which the group is named) is in its normal spot. The rest appear as two rows below the last known element - currently Organesson (no 118).

Answer 4

They are placed separately, in two rows, at the bottom of periodic table.

Answer 5

These classes of metals are placed outside the main table in the f block. The lanthanoids are elements 57-71, and the actinoids are elements 89-103.

Answer 6

Lanthanoids and actinoids are placed in separate rows under the periodic table.

Answer 7

The lanthanides and the actinides are placed in two separated rows under the periodic table.

Answer 8

they are not placed from elements 57-70.