Question

write limitations of mendeleev periodic table ​

Answer 1

Position of hydrogen

order of elements according to atomic mass was incorrect

Answer 2

1. no position can be given to hydrogen in the periodic table
2.isotopes were discovered long after mendeleev had proposed his periodic classification of elements
3.He left blank places for the elements which were not discovered
4.atomic masses do not increase in a regular manner in going from one element to the next.....


here's ur ans mate :-):-)