Ramsay was firmly convinced that this is the element that would fit into the predicted position in the periodic table, which was located between the elements helium and argon. Especially after krypton had been removed from the residue, there was a gaseous substance that gave a brilliant red light detected by the method of spectroscopy. For this reason, these two scientists attempted to freeze the argon sample by using liquid air.Īfter gases ( nitrogen, oxygen, argon, and krypton) evaporated, the residue turned out to be an undefined gaseous substance that emitted a bright crimson glow when ionized. After having successfully isolated the elements argon and helium, the Scottish chemist Sir William Ramsay (1852 – 1916) and his English fellow Morris Travers (1872 – 1961) made an effort to achieve a new scientific discovery at the University College of London.Īs an experienced chemist, Ramsey was aware of the fact that a chemical element may often hide a new, undiscovered substance within its structure. The story of neon’s discovery begins in 1898. Sharing the properties of its family of the periodic table, neon is also an excellent conductor of electricity which exhibits the most prominent characteristic of this chemical element – the colorful glow.
NEON CHEMICAL SYMBOL FULL
These chemical elements are not only the most stable substances in the periodic table but also the least reactive ones because they all have a full outer valence shell. It is classified in the group of noble gasses, together with helium, argon, krypton, and xenon. Neon is a rare gas with a closely packed cubic structure composed of molecules that contain a single atom of this chemical element. This rare monoatomic atmospheric gas has an unknown electronegativity according to Pauling, while the atomic radius of neon according to van der Waals is 0.16 nm.
With the periodic table symbol 10, atomic number 10, atomic mass of 20.179 g.mol-1, and electron configuration 2s22p6, neon is a chemically inert, colorless, odorless, diamagnetic, and non-toxic gas.
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