Neon
10
Ne
Groep
18
Periode
2
Blok
p
Protonen
Elektronen
Neutronen
10
10
10
Algemene Eigenschappen
Atoomnummer
10
Atomair gewicht
20,1797
Massa Getal
20
Categorie
Edelgassen
Kleur
Kleurloos
Radioactief
Nee
Van het Griekse woord neos, nieuw
Kristalstructuur
Zijvlak-gecentreerde Kubus
Historie
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.
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.
Eletronen per schil
2, 8
Electronconfiguratie
[He] 2s2 2p6
In a vacuum discharge tube, neon glows reddish orange
Fysieke Eigenschappen
Fase
Gas
Dichtheid
0,0008999 g/cm3
Smeltpunt
24,56 K | -248,59 °C | -415,46 °F
Kookpunt
27,07 K | -246,08 °C | -410,94 °F
Fusiewarmte
0,34 kJ/mol
Verdampingswarmte
1,75 kJ/mol
Specifieke Warmtecapaciteit
1,03 J/g·K
Overvloedig aanwezig in de aardkorst
3×10-7%
Overvloedig aanwezig in het universum
0,13%
CAS-nummer
7440-01-9
PubChem CID nummer
23935
Atoomeigenschappen
Atoomstraal
38 pm
Covalentiestraal
58 pm
Electronegativiteit
-
Ionisatiepotentiaal
21,5645 eV
Atoomvolume
16,7 cm3/mol
Thermische geleiding
0,000493 W/cm·K
Oxidatietoestanden
0
Toepassingen
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.
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
Isotopen
Stabiele isotopen
20Ne, 21Ne, 22NeInstabiele isotopen
16Ne, 17Ne, 18Ne, 19Ne, 23Ne, 24Ne, 25Ne, 26Ne, 27Ne, 28Ne, 29Ne, 30Ne, 31Ne, 32Ne, 33Ne, 34Ne