Comprehension (s-Block Element)
The noble gases have closed shell electronic configuration and are monoatomic gases under normal conditions. The low boiling points of lighter noble gases are due to weak dispersion forces between the atoms and the absence of other interatomic interactions.
The direction of xenon and fluorine leads to a series of compound with oxidation numbers +2, +4 and +6. XeF4 reacts violently with water to give XeO3. The compounds of xenon exhibit rich stereochemistry and their geometries can be deduced considering the total number of electron pairs in the valence shell.
Argon is used in arc welding because of its