Although they were formerly called the inert gases, at least the heavier elements of Group $8$ do form relatively stable compounds. For example, xenon combines directly with elemental fluorine at elevated temperatures in the presence of a nickel catalyst.

$xe(g)+2F_2(g)xe{F}_4(s)$

What is the theoretical mass of xenon tetrafluoride that should form when $130.g$ of xenon is reacted with $100.g$ of $F_2?$ What is the percent yield if only $145g$ of $xe{F}_4$ is actually isolated?