I have compiled a list of sources for the elements that are available to the amateur chemist. Xenon will be discussed here.
Xenon is a heavy, colorless, odorless gas. It is quite inert and no compounds of it were made until the 1960s. Xenon produces a bright white flash when an electric discharge is passed through it. After the first xenon compounds were made, scientists produced a myriad of xenon compounds, including xenates, perxenates, xenic acid, xenon tetrafluoride, xenon trioxide, etc. Most of these are extremely strong oxidizing agents and highly reactive or unstable in some way.
In element form: Flash bulbs in cameras contain xenon gas. Some expensive headlights are filled with xenon. Xenon is also used in a few flashlight bulbs.
In compound form: No sources found.
Here is my sample of xenon. It is the core of a camera's flash bulb.