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Why are electron affinities of noble gas...

Why are electron affinities of noble gases zero? Arrange halogens in increasing order of electron affinity.

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The electron gain enthalpy of noble gases in zero because it has stable electronic configuration . `ClgtBrgtFgtI` is increasing order to electron gain enthalpy.
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CENGAGE CHEMISTRY ENGLISH-APPENDIX - INORGANIC VOLUME 1-Exercise Short
  1. What is diagonal relationship?

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  2. Give four characteristics of f-block elements.

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  3. Why are electron affinities of noble gases zero? Arrange halogens in i...

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  4. Arrange the species in each group in order of increasing ionisation en...

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  5. State the factors which affect electronaffinity

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  6. Explain the term (a) screening effect

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  7. which has higher 1st ionisation energy B or Be and why?

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  8. How does reducing power of elements vary in group 1?

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  9. a. Among Cu^(o+),Cu^(2+) and Cu which is the largest in size and why? ...

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  10. Give two characteristics of p-block elements.

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  11. What is modern periodic law? Mention the important features of the lon...

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  12. Elements A and B have atomic numbers 11and 24 respectively. Write the...

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  13. How do melting and boiling points vary in a (a) period and (b) group i...

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  14. a. Name the most metallic element in second period and most non-metall...

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  15. How does electronegativity vary down the group 17 and why? How does it...

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  16. Among the elements of second period pick out the element with the l...

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  17. Why CaCl(2) and NaCl are bad conductor of electricity in the solid sta...

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  18. Write the Lewis dot symbols and predict the valencies for the elements...

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  19. Out of KCI and CaO, which has higher lattice energy and why?

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  20. Is MgCl(2) linear or bent or neither of two? Explain

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