Why is Argon used to fill light bulbs and not other Nobel Gases?
Argon is used because it is a cheap inert gas. If the filament in a light bulb was surrounded by regular air, it would corrode and not last very long. The best way to make sure that nothing reacts with the filament is to surround it with an inert or “noble” gas. Some light bulbs use Xenon or others to be able to operate at higher temperatures. Argon is used in inexpensive light bulbs because it is the least expensive inert gas to produce. or you can say Mostly because it causes more light to be made when the electrical currents flow through it. Hence forth, you have a brighter bulb. The flip side of the coin is that you have a hotter bulb too.
