Why are there empty spaces in the rows on the periodic table?(1 point)

Question

Responses

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 masses are right next to each other.

Because elements of the same size are found in the same rows.

Answer 1

The correct response is:

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

Empty spaces in the periodic table indicate elements that were predicted to exist with properties similar to those of the elements in the same group or column.