Question

20. State modern periodic law​

Answer 1

Answer:

The modern Periodic law can be stated as: “The physical and chemical properties of the elements are periodic functions of their atomic numbers”. The atomic number is equal to the number of electrons or protons in a neutral atom.

Answer 2

The modern periodic law can be stated as : " The physical and chemical properties of the elements are periodic functions of their atomic numbers'' The atomic number is equal to the number of electrons and protons in a neutral atom.

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