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The second period of the long time of pe...

The second period of the long time of periodic table contains the following elements:

Write down their electronic configuratin.

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MODERN PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-EXAMPLE
  1. Consider the group 1 of the periodic table and answer the following qu...

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  2. Two elements X and Y have atomic number 6 and 17 respectively. To whic...

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  3. The second period of the long time of periodic table contains the foll...

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  4. The second period of the long time of periodic table contains the foll...

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  5. How were the positions of isotopes of varoius elements decided in the ...

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  6. Is it possible to have an element with atomic number 1.5 placed betwee...

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  7. Where do you think should hydrogen be placed in the Modern Peridic tab...

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  8. How do you calculate the valency of an element from its electronic con...

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  9. What is the valency of magnesium with atomic number 12 and sulphur wit...

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  10. Find out the valencies of the first two elements.

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  11. How does the valency vary in the period on going from left to right?

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

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  13. In a periodic table How do you think the tendency to lose electrons wi...

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  14. In a periodic table How would the tendency to gain electrons change as...

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  15. In a periodic table How would the tendency to gain electrons change as...

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  16. An atom of an element has electronic configuraiton 2,8,7. To which gro...

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  17. Which of the following belongs to same period same group?

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  18. The third period of the long form of periodic table contains the follo...

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  19. The third period of the long form of periodic table contains the follo...

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  20. Three elements X,Y and Z belong to groups 2,15 and 17 respectivley. Pr...

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