Answer the Following Question. How It Can Be Proved that the Basic Structure of the Modern Periodic Table is Based on the Electronic Configuration of Atoms of Different Elements? - Science

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Answer the following question.
How it can be proved that the basic structure of the Modern Periodic Table is based on the electronic configuration of atoms of different elements?

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Solution

Modern periodic law states that the physical and chemical properties of an element in the periodic table are the periodic function of the atomic number of that element. The electronic configuration of the elements plays an important role in the placement of elements in the modern periodic table. The valence shell electron of an element decides its position in a particular group or period.

For example, if the electronic configuration of an element is 2, 1, it means that the element belongs to group I and 2nd period (valence electron is present in the 2nd shell). Similarly, if the electronic configuration of an element is 2, 8, 1, it means that the element belongs to group I and 3rd period (valence electron is present in the 3rd shell).  

Thus, the modern periodic table is based on the electronic configuration of the different elements.

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