Question

What are the merits and demerits of the Mendeleev’s Periodic classification?

Answer 1

it was the first periodic classification of the elements on the basis of atomic number rather than the mass number , its demerits is that it failed to classify a secure and agreeable position to the controversial element hydrogen

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plz mark branliest

Answer 2

#Merits of Mendeleev Periodic Table - 1.Some gaps were left for the elements yet to be discovered. 2.Thus, if a certain new element is discovered, it can be placed in a new group without disturbing any existing group.

#Demerits of Mendeleev Periodic Table - 1.He was unable to locate hydrogen in the periodic table. 2.Increase in atomic mass was not regular while moving from one element to another. 3.Hence, the number of elements yet to be discovered was not predictable. 4.Later on, isotopes of elementswere found which violated Mendeleev’s periodic law