![]() (b) As many features of the Mendeleev's periodic table were later used when Modern Periodic Table was made so we can say that Mendeleev's contributions to the concept of a periodic table laid the foundation for the Modern Periodic Table. Mendeleev's Periodic Law states that physical and chemical properties of elements are a periodic function of their atomic masses. (a) Mendeleev classified elements according to Mendeleev's Periodic Law. (b) Mendeleev's contributions to the concept of a periodic table laid the foundation for the Modern Periodic Table. (a) What was Mendeleev's basis for classification of elements? Similar properties of calcium, strontium and barium were: The elements calcium, strontium and barium were put in one group or family on the basis of their similar properties.
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