Question

State Modern Periodic law

Answer 1

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⏩ The Modern Periodic law states that the physcial and chemical properties are the perodic function of their atomic weight.

⏩ Modern periodic law was given by Henry Moselay.

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Answer 2

Modern Periodic Law 

✌️✔️In the year 1913 A.D, An English scientist Henry Moseley demonstrated, with the help of experiments done using X-ray tube , that the atomic number ( Z ) of an element corresponds to the positive charge on the nucleus or the number of the protons in the nucleus of an atom. 

✌️✔️This revealed that "Atomic number" is a more fundamental property of an element than it's atomic mass.

✌️✔️Thus, Accordingly, the statement of the modern periodic law was stated as follows :-

✌️✔️" Properties of elements are a periodic function of the atomic numbers. "