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Why has it been difficult to study the c...

Why has it been difficult to study the chemistry of radon ?

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Radon is a radioactive element with very short half- life of 3.82 days. That is why the study of chemistry of radon is a difficult task.
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OSWAAL PUBLICATION-P - BLOCK ELEMENTS-TOPIC - 4 (GROUP - 18 ELEMENTS, THEIR PROPERTIES AND SOME IMPORTANT COMPOUNDS)(VERY SHORT ANSWER TYPE QUESTIONS)
  1. Why do not helium, neon and argon form chemical compounds.

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  2. What is the shape of XeF(6) molecule ?

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  3. Why has it been difficult to study the chemistry of radon ?

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  4. Helium and neon do not form compounds with fluorine. Why ?

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  5. Why are the elements of Group - 18 known as noble gases?

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  6. Neon is generally used for warning signals. Why ?

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

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  8. What prompted Bartlett to the discovery of noble gas compounds.

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  9. Noble gases have very high ionisation enthalpy. Why ?

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  10. Ionisation enthalpy decreases down the group in noble gases. Why ?

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  11. How does atomic radii changes in group - 18 elements ?

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  12. Noble gases have large positive values of electron gain enthalpy. Why ...

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  13. Name the first noble gas compound prepared by Neil Bartlett?

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  14. Give common names of noble gases.

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  15. How is XePtF(6) prepared ?

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  16. How is radon obtained ?

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  17. What is the percentage of noble gases in the atmospheric air ?

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  18. Which noble gas in most abundant in atmospheric dry air?

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  19. Why noble gases are called rare gases ?

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  20. Why are the elements of Group - 18 known as noble gases?

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