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Arrange the following elements in the in...

Arrange the following elements in the increasing order of non - metallic character. B,C,Si,N,F

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The increasing order of non - metallic character as follow
`underset("Increasing non - metallic character")overset(BltSiltCltNltF)to`
Non metallic character increases across the period and decreases down the group.
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SURA PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-ADDITIONAL SHORT ANSWERS
  1. Noble gases have almost zero electron affinity give reason.

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  2. Which among the halogens would you expect to have the least electroneg...

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  3. Arrange the following elements in the increasing order of non - metall...

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  4. Give reason for the following statement. Halogens act as good oxidisin...

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  5. Write notes on triads and periods.

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  6. Write a note about chancourtois classification .

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  7. Mention the names of the elements with atomic number 101 ,102,109 and ...

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  8. Write any two characteristic properties of alkali metals.

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  9. Account for the fact that noble gases exhibit low chemical reactivity.

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  10. What are semi - metal ? Give example.

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  11. What are periodic properties ? Give example.

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  12. Define ionic radius.

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  13. Electron gain enthalpy values

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  14. Electron gain enthalpy is F is less negative than Cl Why ?

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  15. Define valency . How is it determined ?

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  16. Why there is a need for classification of elements?

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  17. What are the reasons behind the Moseley's attempt in finding atomic nu...

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  18. Explain about the salient features of metals.

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  19. Explain about the characteristic of non - metals.

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  20. What is covalent radius ? . How would you determine the covalent radiu...

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