Question

state modern periodic law of classification of elements

Answer 1

According to the modern periodic law, the properties of the elements and their compounds are a periodic function of their atomic numbers. Thus, in the modern periodic table, atomic number forms the basis of the classification of elements;Themodern table is called 'long form' of the periodic table.

Answer 2

It states that , physical and chemical properties of the element are periodic function of their atomic mass.