Question

Friend can any limitations of modern periodic table.

Answer 1

Hey


The limitations of modern periodic table :-


>> Place of helium :-

Helium should be placed in the group number :- 2 , period number :- 1 .

But it is placed in group number :- 18 and period number :- 1 .


>> Place of Hydrogen :-

Hydrogen deservers two places in modern period table .

It is in the first cell of PT , and it also behaves like " Chalcogen " , i.e group number :- 17 .


thanks :)

Answer 2

what is your que..
you want to know periodic table if you want than i send you but whats your que..