Question

What is the difference between Mendeleev's and modern periodic law? ​

Answer 1

Mendeleev's periodic table is, based on relation of properties of elements as dependent on the atomic weight of element. But Modern periodic table considers atomic number as the fundamental property that decides the properties of elements.

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Answer 2

Explanation:

Mendeleev's periodic table is, based on relation of properties of elements as dependent on the atomic weight of element. But Modern periodic table considers atomic number as the fundamental property that decides the properties of elements. Modern periodic table does correct defects of the Mendeleev's periodic table.