The noble gases have closed- shell electronic configuration and are monoatomic gases under normal conditions. The low boiling points of the lighter noble gases are due to weak dispersion force between the atoms and the absence of other interatomic interactions. 
Xenon reacts directly with fluorine and gives compounds from oxidation states II to VIII are known, XeF₄ and XeF₆ are violently hydrolysed by water to give stable aqueous solution up to 11 M of XeO₃.