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

(N/A) Mendeleev was unable to assign a fixed position to hydrogen and isotopes in his periodic table.
In Mendeleev's periodic table,the increase in atomic mass of the elements was not always regular from one element to the next.
It was believed that a more fundamental property than atomic mass could explain periodic properties in a better manner.
Henry Moseley demonstrated that the atomic number of an element is a more fundamental property than its atomic mass for explaining periodic properties.
By arranging elements in the increasing order of their atomic numbers,the Modern Periodic Table successfully resolved the anomalies found in Mendeleev's Periodic Table.