Question

the two rows of transition metals that are placed at the bottom of the periodic table to save space are called the and the

Answer 1

The reason why Lanthanides and Actinidesare located at the bottom of the periodical table is because of their properties and in the block in which electrons fill up. ... The reason why inner-transition metals are located at the bottom of the periodic table, separated from the rest is because they all fill the f-block.

Answer 2

The two rows of transition metals that are placed at the bottom of the periodic table to save space are called lanthanides and actinides.