Question

demerit of Mendeleev periodic table?

Answer 1

Hiiiii...

here is ur answer.....

the demerits of mendeleef periodic table is....

mendaleef periodic table had few anomalies that could not be explained on the basis of mendeleef periodic law.....

a. the position of isotopes could not be explained....

b. wrong order of atomic masses of some elements could not be explained.....

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Answer 2

demerits of mandeleev periodic table are anomalous pairs of elements ,position of isotopes ,lanthanides and actinides