Ne
Neon
Element 10 · 20.18 u
NumerasieCity name (optional, probably does not need a translation)
p-block
Periode 2
Group 18
Gas by RT
Dag lengte: →
Neon is a noble gas famous for the bright reddish-orange light it emits in discharge tubes.
Fisiese eienskappe
| Atomic Mass | 20.18 u |
| Density | 0.0008999 g/cm³ |
| Smelt punt: | 24.56 K |
| Boiling Point | 27.07 K |
| Appearance | Colorless gas, reddish-orange glow in discharge |
| Toestand by kamerkomp | Gas |
Chemical Properties
| 1st Ionization Energy | 2080.7 kJ/mol |
| Electron Affinity | -116.0 kJ/mol |
| Oxidation States | 0 |
Atomic Properties
| Electron Configuration | [He] 2s2 2p6 |
| Atomic Radius | 38.0 pm |
| Covalent Radius | 58.0 pm |
| Atomic radius: | 154.0 pm |
Discovery
| Discovered By | William Ramsay, Morris Travers |
| Discovery Year | 1898 |
| Location | London, England |
| Genoemde Na | Greek 'neos' meaning new |
About Neon
Neon is a colorless, inert noble gas that gives a distinctive reddish-orange glow in vacuum discharge tubes. It is the fifth most abundant element in the universe but rare on Earth. Neon has no true chemical compounds and has the narrowest liquid range of any element.
Gebruiks & Programme
Neon signs and lighting, high-voltage indicators, helium-neon lasers, and cryogenic refrigeration.
Fun Fact
Although we call all colorful gas-discharge tube signs 'neon signs,' only the red-orange ones actually contain neon; other colors use different gases.
Isotopes
| Definieer Molekulêr Gewigte | Abundance | Half-Life | Stabiel |
| 20 | 0.9048% | - | Ja |
| 21 | 0.0027% | - | Ja |
| 22 | 0.0925% | - | Ja |
Electron Configuration
[He] 2s2 2p6