Neon is an odorless, colorless, inert gas that is used in electric signs, fluorescent lamps, and high-voltage indicators. It is classified as a noble gas. The name of the element is derived from the Greek word for new.
Neon is used as a cooling agent in refrigeration units and as a refrigerant. It is also used in lasers. Because of its brilliant red light, neon is often used in advertising signs.
In the early 1800s, noble gases were not represented on the periodic table. They were discovered by chemists Sir William Ramsay and Morris Travers. Their first experiments involved collecting argon and krypton gas from liquid air and then examining it.
The researchers reacted with the atoms of these gases, and found that they formed true octets of electrons. They named the newly discovered gas neon.
Neon has a relatively high density of 2/3 the density of air. In fact, it is the fifth most abundant element in the universe.
Neon can be produced industrially from fractional distillation of liquefied air. However, it is quite expensive.
While it is not hazardous, inhaling or indulging in high concentrations of neon can cause asphyxiation. This can lead to fatigue and death.
Unlike other elements, it is not easily combustible, which makes neon suitable for use as a coolant. However, if it is heated to a high temperature, it can become flammable.
The smallest range of liquid temperatures for neon is -246 degrees centigrade. At that temperature, the liquid becomes a clear, colorless, odorless gas.
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