When it comes to noble gas compounds, among all Group 88 elements, only xenon forms stable compounds. We're going to say it reacts directly with fluorine and it forms fluorides.
Now if we take a look here, we have xenon as a gas. It's a noble gas and it reacts with some set number of fluorine gas molecules. Here N can represent 1-2 or three and it produces xenon with some set number of fluorine atoms connected to it.
X here could represent 2-4 or six. So just remember xenon is an old gas that we focus on. It reacts directly with fluorine and it creates different types of xenon fluoride compounds with two fluorines, 4 fluorines or even up to six fluorines.