Неон

10
Ne
Група
18
Периода
2
блок
p
Protons
Electrons
Neutrons
10
10
10
Општи Својства
Атомски број
10
Атомска тежина
20,1797
Mass Number
20
Category
Благородни гасови
Color
Colorless
Radioactive
Не
From the Greek word neos, new
Кристална структура
Face Centered Cubic
History
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
Електронска конфигурација
[He] 2s2 2p6
Ne
In a vacuum discharge tube, neon glows reddish orange
Физички Својства
Фаза
Gas
Густина
0,0008999 g/cm3
Точка на топење
24,56 K | -248,59 °C | -415,46 °F
Точка на вриење
27,07 K | -246,08 °C | -410,94 °F
Топлина на топење
0,34 kJ/mol
Топлина на испарување
1,75 kJ/mol
Specific Heat Capacity
1,03 J/g·K
Abundance in Earth's crust
3×10-7%
Abundance in Universe
0,13%
Vial
Кредити на слика: Images-of-elements
Vial of glowing ultrapure neon
CAS Number
7440-01-9
PubChem CID Number
23935
Атомски Својства
Атомски полупречник
38 pm
Ковалентен полупречник
58 pm
Електронегативност
-
Ionization Potential
21,5645 eV
Atomic Volume
16,7 cm3/mol
Thermal Conductivity
0,000493 W/cm·K
Oxidation States
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