Tungsten(W)

Tungsten is one of the toughest things found in nature that is a chemical element of atomic number 74, steel-gray metal that is the most important material in the CFL light bulb. Tungsten is placed in the middle(electrode) of a CFL light bulb in the shape of a coil. Tungsten is the hottest at 81.78°C  (179.2 F) in the CFL light bulb. Tungsten is mined in China, Russia, Northwest Territories(Canada)  and etc. 

Physical/Chemical Properties:

Tungsten is a hard brittle metal that is hard to function as materials for things. Pure tungsten is malleable and it is the form of tungsten in CFL light bulbs. In a CFL light bulb, the temperature rises about 81.78°C (179.2 F) which is a high temperature in houses. The reason why tungsten is used in the center and the main conductor of the CFL light bulb is because tungsten has the highest melting point of  3,422 °C(6,192 °F) and can handle the heat in the CFL light bulb easily. Also, tungsten conducts electric current really well which is very suitable for light bulbs.

Tungsten is a very neutral element because it mostly isn't reactive. Tungsten doesn't react with water, oxygen, some types of acids, and etc. Pure tungsten isn't flammable and combustible unless the temperature is extremely high. Because of element tungsten's unique characteristic, tungsten doesn't cause any problem in a CFL light bulb.

If you want to know about tungsten facts, please watch the video.

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