- All elements exist in the atomic form and are highly stable.
- Xe can form a few complexes due to it’s modest electronegativity (2.6)
- The large size of Xe provides coordinative unsaturation to form coordination numbers up to 8, [XeF8]2-.
- Kinetic inertness seen in C, N, O, F, P, S, Se, Cl, Br, I is now seen in Xe and Kr so that Xe oxidation states range from 0, [Xe], to +VIII, [Kr].
- Alternating oxidation states remain stable as in the halogens.
- Stereochemcially active lone pair in every oxidation state except VIII.
- Similar to N, the highest oxidation state (VIII) is only accessible is p bonding occurs to decrease the electron density on Xe.
- Xenon oxides are acidic, xenon hydrides are non-existent, and only xenon fluorides can be used to form other xenon halogen complexes.
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Noble Gas (Group VIIIA) Trends
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