Question

why periodicity between the elements​

Answer 1

Answer:

The modern periodic law states that the physical and chemical properties of the elements are the periodicfunction of the atomic numbers

Answer 2

@brainly...

PERIODICITY---

Periodicity is one of the most fundamental aspects of the periodic table of the elements. Here is an explanation of what periodicity is and a look at the periodic properties.

Periodicity is one of the most fundamental aspects of the periodic table of the elements. Here is an explanation of what periodicity is and a look at the periodic properties.What Is Periodicity?Periodicity refers to the recurring trends that are seen in the element properties. These trends became apparent to Russian chemist Dmitri Mendeleev (1834–1907) when he arranged the elements in a table in order of increasing mass. Based on the properties that were displayed by the known elements, Mendeleev was able to predict where there were "holes" in his table, or elements yet to be discovered.