Write true or false for the statement: 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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(TRUE) The statement is True. Mendeleev's periodic law states that the properties of elements are a periodic function of their atomic masses. He arranged the elements in increasing order of their atomic masses and observed that elements with similar physical and chemical properties repeat after regular intervals.

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