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Look at a part of periodic table given b...

Look at a part of periodic table given below:

Which of these elements has zero valency?

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The long form of periodic table has

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MODERN PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-EXAMPLE
  1. Look at a part of periodic table given below: Which of these elements...

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  2. A part of the periodic table is show below: Which of these is/are nob...

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  3. A part of the periodic table is show below: Which of these is/are hav...

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  4. A part of the periodic table is show below: Which of these is/are hav...

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  5. A part of the periodic table is show below: Which of these is/are alk...

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  6. Consider the group 1 of the periodic table and answer the following qu...

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  7. Consider the group 1 of the periodic table and answer the following qu...

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  8. Consider the group 1 of the periodic table and answer the following qu...

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  9. Consider the group 1 of the periodic table and answer the following qu...

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

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

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

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

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

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

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

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

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

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

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

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

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