Responses

Because the elements on the periodic table are arranged by order of discovery.
Because the elements on the periodic table are arranged by order of discovery.

So that elements with similar properties are aligned in the same column.
So that elements with similar properties are aligned in the same column.

So that elements with similar masses are right next to each other.
So that elements with similar masses are right next to each other.

Because elements of the same size are found in the same rows.
Because elements of the same size are found in the same rows.
1 answer
The correct response is:
So that elements with similar properties are aligned in the same column.
The empty spaces in the periodic table indicate that there are elements that have yet to be discovered or synthesized, and they are arranged in a way that groups elements with similar chemical properties together in columns (groups or families).
