Неон
10
Ne
Група
18
Периода
2
Блок
p
Протони
Електрони
Неутрони
10
10
10
Општа својства
Атомски број
10
Атомска маса
20,1797
Масени број
20
Категорија
Племенити гасови
Боја
Безбојни
Радиоактиван
Не
From the Greek word neos, new
Кристална структура
Површинскицентрична Кубична
Историја
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.
Електрони по љусци
2, 8
Електронска конфигурација
[He] 2s2 2p6
In a vacuum discharge tube, neon glows reddish orange
Физичка својства
Стање
Гас
Густина
0,0008999 g/cm3
Температура топљења
24,56 K | -248,59 °C | -415,46 °F
Температура кључања
27,07 K | -246,08 °C | -410,94 °F
Топлота топљења
0,34 kJ/mol
Топлота испаравања
1,75 kJ/mol
Специфична топлота
1,03 J/g·K
Заступљеност у Земљиној кори
3×10-7%
Заступљеност у Космосу
0,13%
CAS број
7440-01-9
ПубЦхем ЦИД број
23935
Атомска својства
Атомски радијус
38 pm
Ковалентни радијус
58 pm
Електронегативност
-
Јонизујући потенцијал
21,5645 eV
Молска запремина
16,7 cm3/mol
Топлотна проводљивост
0,000493 W/cm·K
Оксидациона стања
0
Примена
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
Изотопи
Стабилни изотопи
20Ne, 21Ne, 22NeНестабилни изотопи
16Ne, 17Ne, 18Ne, 19Ne, 23Ne, 24Ne, 25Ne, 26Ne, 27Ne, 28Ne, 29Ne, 30Ne, 31Ne, 32Ne, 33Ne, 34Ne