There are many different types of light bulbs. The standard filament style bulb is usually flooded with an inert gas, or pulled into a vacuum, to keep the filament from self destructing. Originally, Filaments where composed of a carbon thread. Since carbon is a resistor of electric, it can generate large amounts of heat/light.This caused almost immediate failure due to overheating and mixing with oxygen which accelerated its failure. A light bulb can in fact burn, without inert gases or a vacuum, however the life of the filament is very short (.5 seconds to 3 seconds from my experience) Florescent bulbs are slightly different. Florescent bulbs use a mixture of Argon and Mercury vapor. Electrons conduct from one end to the other while "bumping" into the mercury atoms. The electrons in turn excite the mercury vapor, when this gas returns to its unexcited state they produce ultraviolet protons. When these protons hit the phosphor coating inside the tube they create light. In summary, different styles of light bulbs use gas in different methods. However The most prevalent method is to reduce the amount of heat caused by an electrical reaction inside a tube.
Argon is an inert gas that will not support burning when the bulbs filament becomes white hot because of the current running through it. When a light bulb consists of tungsten, when electricity is passed through it, tungsten offers a very high resistance and it becomes hot and produces white light. At this temperature when it is exposed to air, tungsten gets oxidized. So prevent its oxidation, tungsten is burnt in the atmosphere of argon, which is a inert gas.
argon
An energy saving light bulb is simply a fluorescent light-bulb in a small housing with a built in starter . The gas used for it will be the same as a standard strip-light which is a tube filled with low pressure mercuric oxide and an inert gas like Argon Neon or krypton.
sodium is used in street lights,thats why they have a yellowish/orange colour Answer: Neon & Argon are used in light bulbs.
Argon and nitrogen are the two main gases used in bulbs today.See related links below
Generally, tungsten.
Argon(or nitrogen) and tungsten are used in incandescent light bulbs.
Argon does not react. :)
argon
Yes, it is.
Argon
Argon
The noble gas used in light bulbs and photographs is argon. Argon is used in light bulbs to prevent filament degradation and in photographs to create a stable environment for preserving prints and negatives.
Neon and argon are used in the light bulbs. Neon makes those flashy lights and argon prevents the tungsten filament from burning.
Neon, argon,
Nitrogen
In some light bulbs, the gas used is argon or krypton. These gases help to prolong the life of the filament by reducing its evaporation.
The gas commonly used in house light bulbs is either argon or a mixture of argon and nitrogen. These gases help to prevent oxidation and prolong the life of the filament in incandescent bulbs.