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""(5 ) ""(6 ) C ,""(7 ) N , ""(8 ) ...

`""_(5 ) ""_(6 ) C ,""_(7 ) N , ""_(8 ) O ,""_(9 ) Fe .""_(10 ) Ne ` are in a period in the periodic table .
Classify them into blocks .

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All are p- block elements
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""_(5 ) ""_(6 ) C ,""_(7 ) N , ""_(8 ) O ,""_(9 ) Fe .""_(10 ) Ne are in a period in the periodic table . Which one is more stable ? Why ?

""_(5 ) ""_(6 ) C ,""_(7 ) N , ""_(8 ) O ,""_(9 ) Fe .""_(10 ) Ne are in a period in the periodic table . what are the valencies of the given elements ?

""_(5 )B ""_(6 ) C ,""_(7 ) N , ""_(8 ) O ,""_(9 ) F .""_(10 ) Ne are in a period in the periodic table . write the decreasing order of the atomic size of the given elements .

Answer the following question based on the values of the atomic radii of the elements of one of the periods in modern periodic table Li ( 152 ) , Be (111) B, (88) , C (77) ,N (74) ,o (66 ) and F (64) In the numerical listing of periods in the modern periodic table , what number was given to above elements ?

Period of ( 2 sin 2x -5 cos 2x )/( 7 cos x - 8 sin x) is

A = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, B = {2, 3, 5, 7}. Find A cap B .

Explain how the elements are classified into S. p .d and f- block elements in the periodic table and give the advantage of this kind of classification .

Numerous forms of the periodic table have been devised from time to time. A modern version which is most convenient and widely used is the long or extended from of periodic table. The aufbau principle and the electronic configuration of atoms provide a theoretical foundation for the periodic classification. The horizontal rows are called periods. There are altogether seven periods. The first period consists of 2 elements. The subsequent periods consists of 8, 8,18, 18 and 32 elements respectively. The seventh period is incomplete and like the sixth period would have maximum of 32 elements. Elements having similar outer electronic configurations in their atoms are grouped in vertical columns. These are referred to as groups or families. According to the recommendations of IUPAC, the groups are numbered 1 to 18 replacing the older notation of groups 0, IA, IIA, ....VIIA, VIII, IB.....VIIB. Each successive period in the periodic table is associated with the filling up next higher principal energy level following aufbau sequence. The number of elements in each period is twice the number of atomic orbitals available in the energy level that is being filled. All the elements are classified into four blocks, i.e., s-block, p-block, d-block, and f-block depending on the type of atomic orbitals that are being filled with electrons. What is the position of the element in the periodic table satisfying the electronic configuration (n-1)d^1 ns^2 for n=4 ?

Numerous forms of the periodic table have been devised from time to time. A modern version which is most convenient and widely used is the long or extended from of periodic table. The aufbau principle and the electronic configuration of atoms provide a theoretical foundation for the periodic classification. The horizontal rows are called periods. There are altogether seven periods. The first period consists of 2 elements. The subsequent periods consists of 8, 8,18, 18 and 32 elements respectively. The seventh period is incomplete and like the sixth period would have maximum of 32 elements. Elements having similar outer electronic configurations in their atoms are grouped in vertical columns. These are referred to as groups or families. According to the recommendations of IUPAC, the groups are numbered 1 to 18 replacing the older notation of groups 0, IA, IIA, ....VIIA, VIII, IB.....VIIB. Each successive period in the periodic table is associated with the filling up next higher principal energy level following aufbau sequence. The number of elements in each period is twice the number of atomic orbitals available in the energy level that is being filled. All the elements are classified into four blocks, i.e., s-block, p-block, d-block, and f-block depending on the type of atomic orbitals that are being filled with electrons. Elements A, B, C, D and E have the following electronic configuration: (A) 1s^2, 2s^2 2p^1 (B) 1s^2, 2s^2 2p^6 , 3s^2 3p^1 (C ) 1s^2, 2s^2 2p^6 , 3s^2 3p^3 (D) 1s^2 , 2s^2 2p^6 , 3s^2 3p^5 (E) 1s^2 , 2s^2 2p^6 , 3s^2 3p^6 Which among these will belong to same group in the periodic table ?

VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS -THE PERIODIC TABLE -CREATIVE QUESTIONS FOR NEW MODEL EXAMINATION (SECTION -IV) (INFORMATION SKILLS AND PROJECTS )
  1. ""(5 ) ""(6 ) C ,""(7 ) N , ""(8 ) O ,""(9 ) Fe .""(10 ) Ne ar...

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  2. ""(5 ) ""(6 ) C ,""(7 ) N , ""(8 ) O ,""(9 ) Fe .""(10 ) Ne ar...

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  3. ""(5 ) ""(6 ) C ,""(7 ) N , ""(8 ) O ,""(9 ) Fe .""(10 ) Ne ar...

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  4. ""(5 )B ""(6 ) C ,""(7 ) N , ""(8 ) O ,""(9 ) F .""(10 ) Ne ar...

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  5. Group : Be - Mg -Ca -Sr -Ba -Ra Period : Na -Mg -Al - Si - S -C...

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  6. Write the elements in the ascending order of their atomic radii

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  7. Some elements belonging to second period of periodic table , an...

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  8. Some elements belonging to second period of periodic table , an...

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  9. Some elements belonging to second period of periodic table , an...

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  10. Ionization Fotential curve is the group of atomic number versus...

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  11. Ionization Fotential curve is the group of atomic number versus...

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  12. Ionization Fotential curve is the group of atomic number versus...

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  13. Ionization Fotential curve is the group of atomic number versus...

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  14. The electrons configuration of atom A is 2,8,6 What is the a...

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  15. The electrons configuration of atom A is 2,8,6 stable whethe...

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  16. The electrons configuration of atom A is 2,8,6 Which of the ...

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  17. The electrons configuration of atom A is 2,8,6 How the eleme...

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  18. Refer the above part periodic table and answer the following ...

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  19. Refer the above part periodic table and answer the following ...

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  20. Refer the above part periodic table and answer the following ...

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