Question

How could the Modern Periodic Table remove various anomalies of
Mendeleev's Periodic Table?
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Answer 1

Answer:

The Modern Periodic Table could remove various anomalies of Mendeleev's Periodic Table: a) In the Modern Periodic table elements are arranged in the increasing order of their atomic number, removing the anomaly regarding certain pairs of elements in Mendeleev's periodic table.

Answer 2

Modern periodic table is based on atomic number whereas mendeleevs periodic table was based on atomic mass. The n case of atomic mass there was problem in placing of isotopes which is not there with modern periodic table.