Neon (Ne) - Discovery, Occurrence, Production, Properties and Applications of Neon

Chemical Formula

Ne

Background

Neon was first discovered by Morris Travers and William Ramsay in 1898 shortly after the discovery of krypton in the same year. They both froze argon sample with the help of liquid air and slowly evaporated argon under low pressure to collect the new gas. They applied a high voltage to a vacuum tube placed with the obtained gas sample to observe the spectrum. Interestingly, they perceived a brilliant glow, which had never been seen before. The scientists named the new gas neon, which means "new" in Latin.

Basic Information

Name Neon
Symbol Ne
Atomic number 10
Atomic weight 20.179 amu
Standard state Gas at 298 K
CAS Registry ID 1/9/7440
Group in periodic table 18
Group name Noble gas
Period in periodic table 2
Block in periodic table p-block
Color Colorless
Classification Non-metallic
Melting point 24.56 K (-248.59°C or -415.46°F)
Boiling point 27.07 K (-246.08°C or -410.94°F)
Density 0.00089 g/cm3
Phase at room temperature
Gas

Occurrence

Neon has a concentration of 18.2 ppm in the Earth's atmosphere and 5 ppm in the Earth’s crust.

Isotopes

Neon has 14 isotopes with mass numbers ranging from 16Ne to 29Ne. 20Ne, 21Ne and 22Ne are the three naturally-occurring isotopes.

Production

Neon can be produced as a by-product from the liquefaction of air and by separation from other elements using fractional distillation.

Key Properties

The key properties of neon include the following:

  • It is a colorless, tasteless odorless inert gas
  • It changes to reddish-orange color in vacuum tube
  • It is chemically inactive
  • It has the lowest liquid range of any element.

Applications

Some of the applications of neon are listed below:

  • It is used for manufacturing high-voltage indicators, television tubes, wave meter tubes and lightning arrestors
  • The reddish-orange color emitted from the neon lights are used for advertising purposes
  • It is commercially used as cryogenic refrigerant
  • It is combined with helium to produce helium-neon lasers.

References

G.P. Thomas

Written by

G.P. Thomas

Gary graduated from the University of Manchester with a first-class honours degree in Geochemistry and a Masters in Earth Sciences. After working in the Australian mining industry, Gary decided to hang up his geology boots and turn his hand to writing. When he isn't developing topical and informative content, Gary can usually be found playing his beloved guitar, or watching Aston Villa FC snatch defeat from the jaws of victory.

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Comments

  1. Jaiden Sturma Jaiden Sturma United States says:

    I need electronegativity and isotopes and atomic radius

  2. Nawaar Kanji Nawaar Kanji Tanzania says:

    I need help in calculating the average mass of a Mg atom it says A sample of magnesium is found to contain 78.70% of ²⁴Mg atoms (Mass 24.99 amu), and 11.17% of 26Mg atoms(Mass 25.98 amu) calculate the average mass of a Mg atom

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