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Observe the following table and F...

Observe the following table and Fill it .

Observations :
Find average atomic weights of the first and third elements in each row and compare it with the atomic weight of the middle element.

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VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS-THE PERIODIC TABLES-EXERCISE
  1. The second period element , for example , for example 'F' has ...

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  2. Observe the following table and Fill it . Observations ...

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  3. Observe the following table and Fill it . Observations ...

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  4. What is atomic number ?

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  5. Consider the following elements of third period of modern periodic ta...

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  6. How does the valency vary on going down a group ?

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  7. DO the atom of an element and its ion have same size ?

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  8. Imagine , which one in each of the following pairs is large in...

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  9. Imagine , which one in each of the following pairs is large in...

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  10. Which one in each of the following pairs is larger in size? S^(2-),Cl^...

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  11. Which one in each of the following pairs is larger in size ? ...

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  12. Which one in each of the following pairs is larger in size? C^(4-),F^(...

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  13. Which one between Na and Na^(+) would have more size ?

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  14. Which one between Cl and Cl^(-) would have more size ? Why ?

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  15. A and B are two elements . The compound formed with A and B is...

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  16. The Atomic number of an element is 35 where would you expect ...

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  17. Why were Dobereiner , Newlands and Mendeleeff not 100 % successf...

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  18. Two elements X and Y belong to Groups 1 and 2 respectively in th...

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  19. Two elements X and Y belong to Groups 1 and 2 respectively in th...

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  20. Two elements X and Y belong to Groups 1 and 2 respectively in th...

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