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What are the essential features of the p...

What are the essential features of the periodic table of Mendeleev? Discuss how his table has been modified subsequently.

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VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS-THE PERIODIC TABLES-EXERCISE
  1. What are the limitations of Mendeleev’s periodic table ? How could th...

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  2. Define the mordern periodic law . Discuss the construction of t...

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  3. What are the essential features of the periodic table of Mendeleev? Di...

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  4. Explain how the elements are classified into S. p .d and f- bl...

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  5. Write down the characteristics of the element having atomic number 17.

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  6. Complete the following table using the periodic table.

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  7. Complete the following table using the periodic table .

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  8. Given below is the electronic configuration of elements A, B, C, D : ...

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  9. Given below is the electronic configuration of elements A,B,C,D: (A) 1...

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  10. Given below is the electronic configuration of elements A,B,C,D: (A) 1...

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  11. Given below is the electronic configuration of elements A,B,C,D: (A) 1...

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  12. 1s^2 2s^2 is the electronic configuration of which element?

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  13. What is valency of 1s^2 2s^2 2p^6 3s^2 ?

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  14. Which pair of elements belongs to the same group ? (atomic numbers are...

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  15. To which group and period does the element 'D' belong ?

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  16. S- block and p - block elements except 18 th group elements a...

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  17. The electronic configuration of the elements, X, Y and Z are given bel...

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  18. The electronic configuration of the elements X , Y , and Z are ...

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  19. The electronic configuration of the elements, X, Y and Z are given bel...

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  20. State the number of valence electrons , the group number and ...

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