What is the moden periodic law

Here's what I get  

Explanation:

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

When everything wasn't discovered yet....The Scientists gave different opinions and ways to classify the elements discovered in their time.

Modern Periodic table was the most accepted model for arranging the elements on the basis of their Atomic number. So, we can also say that they are also dependent upon the electronic configurations of those elements. It was put forward by Moseley.

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