2.

Question

Which of the following is the best description of how the modern periodic table is organized?

Elements increase in mass from left to right and top to bottom. Elements are arranged in columns based on similar properties.

Elements are organized in groups of three, according to mass.

Elements are organized based on the number of neutrons found in the nucleus.

Elements are arranged in columns of increasing mass. Elements are arranged in rows based on similar properties.

Answer 1

The best description of how the modern periodic table is organized is: Elements are arranged in columns of increasing mass. Elements are arranged in rows based on similar properties.