What compounds does radon form?
Radon is a noble or inert gas, and, as such, is resistant to compound formation. It can form radon difluoride, RnF2, and an oxide under certain circumstances, but it generally seeks to avoid any chemical bonding. Little is known about the fluoride and the oxide because radon is radioactive (meaning it's dangerous to work with), and the longest lived isotope, 222Rn, has a half-life of less than 4 days (meaning it's hard to "gather up a bit of radon" to study it). Need a link? You got it. Wikipedia has knowledge for free.
A noble gas is one of the inert gases (helium, neon, argon, xenon, krypton, radon) which does not easily form compounds. At one time there were no noble gas compounds known but now xenon. krypton and radon compounds have been created. They were called "noble" gases because like the nobility (kings, queens, dukes etc.) they stood aloof from the common chemicals
They are not very reactive and they do not form bonds with each other, so molecules of noble gases cannot be formed, there are only atoms, i.e. they are monatomic gases.. Up until 1962 no noble gas compounds were known however compounds of Argon, Krypton Xenon and Radon all form unstable compounds with fluorine.
The group on the far right of the periodic table of elements will not bond to form compounds. These are the Noble Gases aka Inert Gases and are the elements of Group 18, which includes helium, neon, argon, krypton, xenon, radon, and element 118. I think that's all of them. I am not 100% confident that this list is entirely inclusive so there may be some other element(s) that do not form compounds. I am…
The elements that don't want to react and form compounds with other elements are the noble or inert gases, which are found in Group 18 of the Periodic Table. They include helium, neon, argon, krypton, xenon and radon. A feature of the elements in this group is that they have the maximum number of electrons possible in their outer (valence) shells, which is what makes them unreactive.