Question

State modern periodic law what is no. Of groups and periods in the modern periodic table

Answer 1

The modern periodic law states that the properties of the elements are the periodic functions of their atomic numbers. There are 18 groups and 7 period in modern periodic table

Answer 2

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the modern periodic law states that the physical and chemical properties of elements are the periodic function of their atomic number .

there are 18 groups and 7 periods in the modern periodic table .

the basis for the modern periodic law was founded by Henry moseley .