Question

The model which is widely used for the classification is

Answer 1

periodic table is the correct answer

Answer 2

The periodic table is the most widely used and accepted classification table worldwide.

It categorizes materials or elements and gases with mass and space it occupies in the form of molecules.

So it is fair to say that the periodic table classifies in terms of mass as well as molecular formula or structure.

This further helps in understanding of properties of the matter in question as well its natural behavior.

Natural behavior is the chemical interaction at ideal room temperature.