Question

Short answer on laws of modern periodic table

Answer 1

This means that when elements are arranged in the order of their increasing atomic number. It observes that elements of similar properties recur at regular intervals or periodically.

It must be noted that elementsare arranged in periodic table in order of their atomic numbers because atomic numbers is the most fundamental property of element

Answer 2

the law that the properties of the elements are periodic functions of their atomic numbers. Also called Mendeleev's law. (originally) the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights.