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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 the answer with reference to period 2 and period 3.

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NAVNEET PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-EXERCISE
  1. What is the relationship between the electronic configuration of an el...

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  2. The atomic number of beryllium is 4 while that of oxygen is 8. Write d...

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

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  4. Answer the following questions: Considering the elements of period 3...

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  5. Answer the following questions: Considering the elements of period 3...

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  6. Answer the following questions: Considering the elements of period 3 ...

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  7. Answer the following questions: What is the periodic trend in the va...

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  8. Classify the elements of the third period into metals and non-metals.

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  9. Answer the following questions: On which side of the period are the m...

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  10. On which side of the period did you find the Non-metals?

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  11. What is the cause of non-metallic character of element?

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  12. What is the expected trend in the variation of non-metallic character ...

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  13. What would be the expected trend in the variation of non-metallic char...

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  14. Answer the following questions: Write down the electronic configurati...

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  15. Answer the following questions: Write down the electronic configurati...

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  16. Answer the following questions: Write down the electronic configurati...

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  17. Answer the following questions: Write down the electronic configurati...

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  18. Answer the following questions: Write down the electronic configurati...

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  19. Answer the following questions: Write down the electronic configurati...

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  20. Answer the following questions: Write down the electronic configurati...

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