Question

What is the basis of Mendeleev's periodic table

Answer 1

In 1869, a Russian chemist, Mendeleev, on the basis of physical and chemical properties discovered a relation known as "PERIODIC LAW". According to the law: "The properties of element are the periodic function of their atomic masses".

Answer 2

The basis of Mendeleev's periodic table is atomic mass.

Atomic mass- the sum of neutrons and protons in the nucleus of the element.

The principal of Mendeleev's periodic table is properties of ans element is periodic function of its atomic masses where as in the modern periodic table it is base on atomic number

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