Question

The modern periodic table has been in walk through the area tomorrow when you land and mental you least one advantage of and limitation of all atoms the name the scientist who first observed that atomic number of the element is more fundamental property than its atomic mass scene state modern periodic law

Answer 1

advantages of modern periodic law
1)the element present in a periodic have sent number of shells
limitation of modern periodic law
1)position of hydrogn and position of isotopes was not fixed in periodic table
modern periodic table was discovered by Dmitri Mendeleev