Question

State any three limitations of Mnedeleev's classification of elements.

Answer 1

imitations of Mendeleev's classification of elements are:
 
i) Mendeleev's periodic law could not explain the position of isotopes in the periodic table.
ii) Mendeleev's periodic law could not assign a proper position to the element hydrogen in the periodic table.
iii) Mendeleev's periodic law failed to explain the wrong order of atomic masses of some elements.