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Why noble gases have very high values of...

Why noble gases have very high values of ionisation enthalpies?

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Because in noble gases, the electronic configuration of the valence shell is `ns^2 np^6`. They have no tendency to lose electron from stable configuration. Thus they have very high values of ionisation enthalpies.
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BETTER CHOICE PUBLICATION-THE P-BLOCK ELEMENTS-QUESTION BANK
  1. Why has it been difficult to study the chemistry of radon?

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  2. Why electron gain enthalpies of noble gases are positive ?

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  3. Why noble gases have very high values of ionisation enthalpies?

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  4. Why is helium placed in p-block elements although its last electron en...

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  5. What inspired N. Bartlett,for carrying out the reaction between Xe and...

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  6. What inspired N. Bartlett,for carrying out the reaction between Xe and...

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  7. Among noble gases, only Xe is known to form chemical compounds. Why ?

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  8. Why do noble gases form compounds with fluorine and oxygen ?

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  9. How are Xenon fluorides XeF2, XeF4 and XeF6 prepared ?

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  10. Discuss the structure of the XeF4 on the basis of VSEPR theory.

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  11. Discuss the structure of XeF2 on the basis of VSEPR teory.

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  12. How are XeO3 and XeOF4 prepared?

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  13. Discuss the shapes of XeO3, XeOF4, XeOF2, and XeO2 F2

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  14. Discuss the hydrolysis of XeF3. Does the hydrolysis of XeF6 lead to a ...

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  15. Give equation for the following: XeF2 + H2 O to

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  16. Give equation for the following: XeF6 + H2 O

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  17. Give equation for the following: XeF2 + PF5 to

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  18. Give equation for the following: XeF6 + NaF to

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  19. Give the structure of XeOF2 and state of hybridization of Xe in it.

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  20. Why is helium used in diving apparatus?

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