Question

How Modern periodic table different from Mendeleev's Periodic Table ?

Answer 1

In modern periodic table elements are arranged on the basis of their increasing atomic numbers,Whereas in Menfeleev's Periodic Table elements are arranged on the basis of their increases atomic masses.

Answer 2

In Modern Peroidic table , Elements are arranged in the increasing order of atomic masses Whereas In Mendeleev's Periodic Table Elemnts are arranged in the increasing order of atomic masses...

There is a proper space for isotopes in Modern Periodic table Whereas No space is available for isotopes in Mendeev's Periodic table...

Hope this help...