what were the criteria used Mendeleev in creating his periodic table
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In Mendeleev's periodic table, elements were arranged in the order of their increasing atomic masses and it was also observed that there occurs a periodic recurrence of elements with similar physical and chemical properties.
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Mendeleev used atomic mass of the elements as the unique criteria of the elements . He proposed that the chemical properties of elements are the periodic funtction of their atomic masses. And
thus, he arranged the elements in the increasing order of their atomic masses.
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