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प्रश्न
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?
उत्तर
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.
संबंधित प्रश्न
The modern periodic table was prepared by ______.
Give alongside is a part of the periodic table :
As we move horizontally from left to right:
| Li | Be | B | C | N | O | F | |
| Na | Mg | Al | Si | P | S | Cl |
(i) What happens to the metallic character of the elements?
(ii) What happens to the atomic size?
How do the atomic radii of elements change as we go from left to right in a period of the periodic table?
What is a group in the periodic table?
The modern periodic table is divided into which blocks?
Write an Explanation.
Period
The amount of energy released when one or more electrons is added to the neutral atom is ______
The inert gas which lies in the third period is ______
Where would you locate the element with electronic configuration 2,8 in the Modern Periodic Table?
Which of the following elements will form an acidic oxide?
