Question

(b) Define modern periodic Law. Discus the construction of the long form of the
periodic table.​

Answer 1

Answer:

The modern periodic law states that the properties of the elements are a periodic function of their atomic numbers. ... Basically, properties depend upon the electronic configuration of the outermost shell or the valence shell of the elements.Sep

Answer 2

Answer:

here's ur answer dude

Explanation:

Modern periodic law

: The physical and chemical properties of elements are the periodic functions of their atomic number

(or)

electron configuration.

... iii) In groups the elements are placed having similar electronic configuration or having similar number of electrons in their outermost shells.

hope it helps