State modern periodic law
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The modern periodic law states that physical and chemical properties of the elements are the periodic function of the atomic numbers. The various elements with the similar properties repeat after certain regular intervals. This repetition occurs when you arrange the elements in order of their increasing atomic numbers.
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1. Properties of elements are a periodic function of thier atomic number. 2. Elements, when arranged in order of increasing atomic number Z ,lead us to the classification known as Modern Periodic Table.
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