Why did they write island of elements at the bottom of the chart instead of placing them where they belong on the periodic table of elements?

The "island of elements" refers to the group of superheavy elements that lie beyond uranium on the Periodic Table, often placed separately at the bottom for clarity and practicality. These elements are highly unstable and have only been synthesized in laboratories, making their placement within the main body of the periodic table less meaningful. Moreover, their unique properties and the limited understanding of their behavior necessitate a distinct representation. This layout helps emphasize their importance while accommodating the complexity of their chemistry.