yes argon is used for light bulb and it is not reactive
The gas in a light bulb is Argon
If air were used in an electric bulb the filament, which becomes extremely hot when the light is on, would rapidly oxidize and burn out in seconds. Instead the bulb is filled with argon, which is inert.
If you use air instead of argon to fill a light bulb, the air will burn the light bulb.
Argon puts the light in bulb
The kind of gas that is in a light bulb is called Argon.
The noblest of the gasses, argon puts the light in bulb.
A product that contains Argon (Ar) is a light bulb.
Argon is often used when an inert atmosphere is needed. It is used in this way in incandescent light bulbs to stop oxygen from corroding the filament. Argon is used in fluorescent tubes and low-energy light bulbs. A low-energy light bulb often contains argon gas and mercury. When it is switched on an electric discharge passes through the gas, generating UV light. The coating on the inside surface of the bulb is activated by the UV light and it glows brightly.
Argon is used in electric bulb so that filament will not oxidize quickly and it gives an inert environment and heat dissipation ability from the filament. Due to argon pressure inside bulb is 400 Pa.