Modern inorganic chemistry

358 THE NOBLE GASES

QUESTIONS

1. The elements of Group O of the Periodic Classification are rare
   and inert/ Criticise this statement, giving evidence in support of
   your criticisms.
   (Liverpool B.Sc., Part I)


2. Survey and account for the group characteristics and trends
   in the elements of Group O (He-Rn). Outline the preparation and
   stereochemistry of xenon tetrafluoride.
   (JMB, A)


3. Discuss the following statements:
   (a) A number of oxides and fluorides are known for xenon but
   similar compounds do not appear to be formed by neon.
   (b) Argon forms clathrate compounds but helium does not.
   (c) Xenon dissolves in water to form a hydrate Xe.6H 2 O,