Final answer:
Noble gases such as Xenon can form compounds, including those with hydrogen, under extreme conditions despite their stable configurations. This is an exception rather than the rule, and such compounds are often unstable.
Step-by-step explanation:
It is generally true that noble gases are very stable due to their full octet and are therefore non-reactive. However, it has been found that under certain conditions, such as high pressure and temperature, noble gases like Xenon (Xe) and Krypton (Kr) can form compounds, including those with hydrogen. These are unusual and are not what typically happens under standard conditions.
For a long time, all noble gases were believed to be completely non-reactive due to their filled outer electron shells, which do not readily accept or give up electrons. However, it has been discovered that some of the heavier noble gases can indeed form compounds, albeit not easily due to the extra energy required to disrupt their stable electronic configurations.
Noble gas compounds are often unstable and require special conditions to exist. Xenon, for example, has been known to form several fluorides and oxides. In addition, xenon and hydrogen can form hydrogen compounds such as xenon hydride (XeH2), under extreme conditions.