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What is the periodic trend in the variat...

What is the periodic trend in the variation of valency while going from left to right within a period? Explain your answer with reference to period 2 and 3.

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While going from left to right within a period, the valency first increases from 1 to 4 and then decreases to 0.
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TARGET PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS -Apply your knowledge
  1. The atomic number of beryllium is 4 while that of oxygen is 8. Write d...

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  2. The table on Textbook page no. 25 is made on the basis of the modern p...

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  3. What is the periodic trend in the variation of valency while going fro...

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  4. What is the periodic trend in the variation of valency while going dow...

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  5. By referring to the modern periodic table, find out the periods to whi...

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  6. State the period to which the above elements belong.

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  7. Arrange the above elements in a decreasing order of their atomic radii...

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  8. Does this arrangement match with the pattern of the second period of t...

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  9. Why this arrangement of elements is similar to the above period of the...

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  10. Which of the above elements have the biggest and the smallest atom ?

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  11. By referring to the modern periodic table, find out the group to which...

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  12. Arrange the above elements vertically downwards in an increasing order...

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  13. Does this arrangement match with the pattern of the group 1 of the mod...

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  14. Which of the above elements have the biggest and the smallest atom ?

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  15. What is the periodic trend observed in the variation of atomic radii d...

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  16. Look at the elements of third period. Classify them into metals and no...

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  17. On which side of the period are the metals ? Left or right?

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  18. On which side of the period did you find the nonmetals?

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  19. Inert gas elements

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  20. Uses of various elements

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