In what respects the Mendeleev's classification is superior to the other classification given earlier?

Mendeleev classification is superior to the earlier classifications :
Mendeleev’s developed a periodic table of elements wherein the elements were arranged on the basis of their atomic mass and also on the similarity in chemical properties.
(2) Among chemical properties, he took the formulae of the hydrides and oxides formed by an element as one of the basic properties of an element for classification.