Neon

10
Ne
Skupina
18
Perioda
2
Blok
p
Protons
Electrons
Neutrons
10
10
10
General Properties
Vrstno število
10
Atomska teža
20,1797
Mass Number
20
Kategorija
Žlahtni plini
Barva
Brezbarven
Radioactive
Ne
From the Greek word neos, new
Kristalna struktura
Ploskovno centrirana kubična
Zgodovina
Neon was discovered in 1898 by the British chemists Sir William Ramsay and Morris W. Travers in London.

It was discovered when Ramsay chilled a sample of air until it became a liquid, then warmed the liquid and captured the gases as they boiled off.

After 1902, Georges Claude's company, Air Liquide, was producing industrial quantities of neon as a byproduct of his air liquefaction business.
Electrons per shell
2, 8
Razporeditev elektronov
[He] 2s2 2p6
Ne
In a vacuum discharge tube, neon glows reddish orange
Physical Properties
Faza snovi
Plin
Gostota
0,0008999 g/cm3
Tališče
24,56 K | -248,59 °C | -415,46 °F
Vrelišče
27,07 K | -246,08 °C | -410,94 °F
Talilna toplota
0,34 kJ/mol
Izparilna toplota
1,75 kJ/mol
Toplotna kapaciteta
1,03 J/g·K
Abundance in Earth's crust
3×10-7%
Abundance in Universe
0,13%
Vial
Zasluge za slike: Images-of-elements
Vial of glowing ultrapure neon
CAS Number
7440-01-9
PubChem CID Number
23935
Atomic Properties
Atomski polmer
38 pm
Kovalentni polmer
58 pm
Elektronegativnost
-
Ionization Potential
21,5645 eV
Atomic Volume
16,7 cm3/mol
Toplotna prevodnost
0,000493 W/cm·K
Oksidacijska stanja
0
Applications
Neon is often used in brightly lit advertising signs.

It is also used in vacuum tubes, high-voltage indicators, lightning arrestors, wave meter tubes, television tubes, and helium-neon lasers.

Liquid neon is used as a cryogenic refrigerant.
Neon is not known to be toxic
Isotopes
Stable Isotopes
20Ne, 21Ne, 22Ne
Unstable Isotopes
16Ne, 17Ne, 18Ne, 19Ne, 23Ne, 24Ne, 25Ne, 26Ne, 27Ne, 28Ne, 29Ne, 30Ne, 31Ne, 32Ne, 33Ne, 34Ne