Periodic function Properties

Prove that the derivative of a periodic function of period T is a periodic function of period T.

According to modern periodic law , the chemical properties of elements are the periodic functions of there :

In the modern periodic table, properties of the elements are a periodic function of their atomic numbers. True/False

State whether the following statements are True or False: In the modern periodic table, properties of the elements are a periodic function of their atomic numbers.

Properties of elements are periodic function of their

A: The properties of elements are the periodic functions of their atomic weights. B: The properties of elements are the periodic functions of their atomic numbers.

_________ and ______ properties of the elements are the periodic function of their _______ numbers.