Neon

10
Ne
Golongan
18
Periode
2
Blok
p
Proton
Elektron
Neutron
10
10
10
Sifat Umum
Nomor atom
10
Massa atom
20,1797
Nomor massa
20
Kategori
Gas mulia
Warna
Tak berwarna
Radioaktif
Tidak
Dari kata Yunani neos, baru
Struktur kristal
Kubik Berpusat-muka
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.
Elektron per kulit
2, 8
Konfigurasi elektron
[He] 2s2 2p6
Ne
In a vacuum discharge tube, neon glows reddish orange
Sifat Fisika
Fase
Gas
Kepadatan
0,0008999 g/cm3
Titik lebur
24,56 K | -248,59 °C | -415,46 °F
Titik didih
27,07 K | -246,08 °C | -410,94 °F
Kalor peleburan
0,34 kJ/mol
Kalor penguapan
1,75 kJ/mol
Kapasitas kalor molar
1,03 J/g·K
Kelimpahan di kerak bumi
3×10-7%
Kelimpahan di alam semesta
0,13%
Vial
Kredit Gambar: Images-of-elements
Vial of glowing ultrapure neon
Nomor CAS
7440-01-9
PubChem CID Number
23935
Sifat Atom
Jari-jari atom
38 pm
Jari-jari kovalen
58 pm
Elektronegativitas
-
Potensi Ionisasi
21,5645 eV
Volume atom
16,7 cm3/mol
Kondusivitas termal
0,000493 W/cm·K
Bilangan oksidasi
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