Question

Why f- block elements are seprated in periodic table​

Answer 1

The lanthanides include elements 58 to 71 (fill out the 4f subshell) and the actinides include elements 89 to 103 (fill out the 5f subshell). 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 reason why Lanthanides and Actinides are located at the bottom of the periodical table is because of their properties and in the block in which electrons fill up. The lanthanides include elements 58 to 71 (fill out the 4f subshell) and the actinides include elements 89 to 103 (fill out the 5f subshell).
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