Neon

10
Ne
Kumpulan
18
Kala
2
Blok
p
Proton
Elektron
Neutron
10
10
10
Ciri-Ciri Am
Nombor atom
10
Berat atom
20.1797
Nombor jisim
20
Kategori
Gas adi
Warna
Tidak berwarna
Radioaktif
Tidak
Daripada perkataan Greek neos, baru
Struktur hablur
Pusat Wajah Kubik
Sejarah
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.
Bilangan elektron per petala
2, 8
Konfigurasi elektron
[He] 2s2 2p6
Ne
In a vacuum discharge tube, neon glows reddish orange
Ciri-Ciri Fizikal
Fasa
Gas
Ketumpatan
0.0008999 g/cm3
Takat lebur
24.56 K | -248.59 °C | -415.46 °F
Takat didih
27.07 K | -246.08 °C | -410.94 °F
Haba pelakuran
0.34 kJ/mol
Haba pengewapan
1.75 kJ/mol
Muatan haba molar
1.03 J/g·K
Banyak pada kerak bumi
3×10-7%
Banyak pada alam semesta
0.13%
Vial
Kredit imej: Images-of-elements
Vial of glowing ultrapure neon
Nombor CAS
7440-01-9
PubChem CID Number
23935
Ciri-Ciri Atom
Jejari atom
38 pm
Jejari kovalen
58 pm
Keelektronegatifan
-
Kebolehan mengion
21.5645 eV
Isipadu atom
16.7 cm3/mol
Daya pengaliran terma
0.000493 W/cm·K
Keadaan pengoksidaan
0
Aplikasi
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
Isotop
Isotop stabil
20Ne, 21Ne, 22Ne
Isotop tidak stabil
16Ne, 17Ne, 18Ne, 19Ne, 23Ne, 24Ne, 25Ne, 26Ne, 27Ne, 28Ne, 29Ne, 30Ne, 31Ne, 32Ne, 33Ne, 34Ne