An inert noble gas is used inside light bulbs.
An inert gas.
argon - inert gas
Tungsten and an inert gas can be found inside of a light bulb.
An inert gas.
Yes, it is used to contain the inert gas that surrounds the filament.
Light bulb is filled with inert gas or simply a vacuum.
An inert gas such as argon.
Light bulb is filled with inert gas or simply a vacuum.
Any inert gas, such as helium, argon or xenon
because oxygen is not an inert gas
inert gas