Answer:
According to the modern periodic law, the chemical properties of the elements are periodic functions of their
a. atomic mass
b. atomic weight
c. period number
d. all of the above
Explanation:
According to the Modern Periodic law which is Mendeleev's periodic law, physical and chemical properties both of the elements are the periodic function of their atomic masses. This includes the number of protons in the nucleus of an atom of that element.
