Neon
Neon General
| Name:Neon | Symbol:Ne |
| Type: Noble Gas | Atomic weight:20.179 |
| Density @ 293 K:0.0009 g/cm3 | Atomic volume:16.7 cm3/mol |
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Discovered:
Neon was discovered in 1898 by William Ramsay and Morris Travers during experiments with liquid air. The name comes from the Greek word 'neon', meaning new. |
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Neon States
| State (s, l, g):gas | |
| Melting point:24.53 K (-248.57 °C) | Boiling point:27.1 K (-246.0 °C) |
Neon Energies
| Specific heat capacity:0.904 J g-1 K-1 | Heat of atomization:0 kJ mol-1 |
| Heat of fusion:0.3317 kJ mol-1 | Heat of vaporization :1.7326 kJ mol-1 |
| 1st ionization energy:2080.6 kJ mol-1 | 2nd ionization energy: 3952.2 kJ mol-1 |
| 3rd ionization energy:6121.9 kJ mol-1 | Electron affinity:kJ mol-1 |
Neon Oxidation & Electrons
| Shells:2,8 | Electron configuration:[He] 2s2 2p6 |
| Minimum oxidation number: 0 | Maximum oxidation number: 0 |
| Min. common oxidation no.: 0 | Max. common oxidation no.: 0 |
| Electronegativity (Pauling Scale): | Polarizability volume:0.396 Å3 |
Neon Appearance & Characteristics
| Structure:fcc: face-centered cubic | Color:Colorless |
| Hardness: mohs | |
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Harmful effects:
Neon is not known to be toxic. |
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Characteristics:
Colorless under normal conditions, its glows a reddish-orange in a vacuum discharge tube. Uses: When a few thousand volts is applied to neon, it emits an orange/red light. It is therefore often used in brightly lit advertising signs. |
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Neon Reactions
| Reaction with air: none | Reaction with 6 M HCl: none |
| Reaction with 15 M HNO3: none | Reaction with 6 M NaOH: none |
Neon Compounds
| Oxide(s): none | Chloride(s): none |
| Hydride(s): none |
Neon Radius
| Atomic radius:38 pm | Ionic radius (1+ ion):pm |
| Ionic radius (2+ ion):pm | Ionic radius (3+ ion):pm |
| Ionic radius (2- ion):pm | Ionic radius (1- ion):pm |
Neon Conductivity
| Thermal conductivity:0.05 W m-1 K-1 | Electrical conductivity: S cm-1 |
Neon Abundance & Isotopes
| Abundance earth's crust:5 parts per billion by weight, 5 parts per billion by moles | |
| Abundance solar system:1,000 ppm by weight, 70 ppm by moles | |
| Cost, pure:$33 per 100g | |
| Cost, bulk:$ per 100g | |
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Source:
Neon is obtained commercially by fractional distillation of liquid air. |
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Isotopes:
Neon has 14 isotopes whose half-lives are known, with mass numbers 16 to 29. Of these, three are stable: 20Ne, 21Ne and 22Ne. |
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Neon Other
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Other:
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