Physics & Chemistry:Xenon
Published: October 4, 2006, 12:00 am
Updated: October 17, 2011, 1:16 pm
This article has been reviewed by the following Topic Editor:
C Michael Hogan
Previous Element: Iodine
Next Element: Cesium |
|
| Physical Properties |
| Color |
colorless |
| Phase at Room Temp. |
gas |
| Density (g/cm3) |
0.0059 |
| Hardness (Mohs) |
--- |
| Melting Point (K) |
161.3 |
| Boiling Point (K) |
165 |
| Heat of Fusion (kJ/mol) |
3.1 |
| Heat of Vaporization (kJ/mol) |
12.7 |
| Heat of Atomization (kJ/mol) |
0 |
| Thermal Conductivity (J/m sec K) |
0.01 |
| Electrical Conductivity (1/mohm cm) |
0 |
| Source |
air |
| Atomic Properties |
| Electron Configuration |
[Kr]4d105s25p6 |
| Number of Isotopes |
9 |
| Electron Affinity (kJ/mol) |
--- |
| First Ionization Energy (kJ/mol) |
1170.4 |
| Second Ionization Energy (kJ/mol) |
2046.4 |
| Third Ionization Energy (kJ/mol) |
3097.2 |
| Electronegativity |
2.6 |
| Polarizability (Å3) |
4 |
| Atomic Weight |
131.29 |
| Atomic Volume (cm3/mol) |
37.3 |
| Ionic Radius2- (pm) |
--- |
| Ionic Radius1- (pm) |
--- |
| Atomic Radius (pm) |
131 |
| Ionic Radius1+ (pm) |
--- |
| Ionic Radius2+ (pm) |
--- |
| Ionic Radius3+ (pm) |
--- |
| Common Oxidation Numbers |
+2,+4,+6 |
| Other Oxid. Numbers |
+8 |
| Abundance |
| In Earth's Crust (mg/kg) |
3×10-5 |
| In Earth's Ocean (mg/L) |
5×10-5 |
| In Human Body (%) |
0% |
| Regulatory / Health |
| CAS Number |
7440-63-3 |
| OSHA Permissible Exposure Limit (PEL) |
No limits |
| OSHA PEL Vacated 1989 |
No limits |
| NIOSH Recommended Exposure Limit (REL) |
No limits |
Sources:
Mineral Information Institute
Jefferson Accelerator Laboratory
EnvironmentalChemistry.com |
|
Xenon is the chemical element with atomic number 54. At normal atmospheric conditons xenon is a colorless gas; its density is much heavier than air, and it is a Noble gas, and, thus, essentially unreactive. Xenon is present in the Earth's atmosphere in trace quantities. The chemical symbol for xenon is Xe.
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Citation
Mineral Information Institute (Lead Author);C Michael Hogan (Topic Editor) "Xenon". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth October 4, 2006; Last revised Date October 17, 2011; Retrieved May 19, 2013 <http://www.eoearth.org/article/Xenon?topic=49557>
The Author
The Mineral Information Institute (MII) is a national 501 (c)(3) not-for-profit organization dedicated to educating youth about the science of minerals and other natural resources, and about their importance in our every day lives.
Each year MII works with interested professional and scientific associations, and various government and education agencies, to help classroom teachers develop materials that are directly usable by teachers in a variety of subjects and a multitude of grade levels. Al ... (Full Bio)
Previous Element: Iodine
Next Element: Cesium |
|
| Physical Properties |
| Color |
colorless |
| Phase at Room Temp. |
gas |
| Density (g/cm3) |
0.0059 |
| Hardness (Mohs) |
--- |
| Melting Point (K) |
161.3 |
| Boiling Point (K) |
165 |
| Heat of Fusion (kJ/mol) |
3.1 |
| Heat of Vaporization (kJ/mol) |
12.7 |
| Heat of Atomization (kJ/mol) |
0 |
| Thermal Conductivity (J/m sec K) |
0.01 |
| Electrical Conductivity (1/mohm cm) |
0 |
| Source |
air |
| Atomic Properties |
| Electron Configuration |
[Kr]4d105s25p6 |
| Number of Isotopes |
9 |
| Electron Affinity (kJ/mol) |
--- |
| First Ionization Energy (kJ/mol) |
1170.4 |
| Second Ionization Energy (kJ/mol) |
2046.4 |
| Third Ionization Energy (kJ/mol) |
3097.2 |
| Electronegativity |
2.6 |
| Polarizability (Å3) |
4 |
| Atomic Weight |
131.29 |
| Atomic Volume (cm3/mol) |
37.3 |
| Ionic Radius2- (pm) |
--- |
| Ionic Radius1- (pm) |
--- |
| Atomic Radius (pm) |
131 |
| Ionic Radius1+ (pm) |
--- |
| Ionic Radius2+ (pm) |
--- |
| Ionic Radius3+ (pm) |
--- |
| Common Oxidation Numbers |
+2,+4,+6 |
| Other Oxid. Numbers |
+8 |
| Abundance |
| In Earth's Crust (mg/kg) |
3×10-5 |
| In Earth's Ocean (mg/L) |
5×10-5 |
| In Human Body (%) |
0% |
| Regulatory / Health |
| CAS Number |
7440-63-3 |
| OSHA Permissible Exposure Limit (PEL) |
No limits |
| OSHA PEL Vacated 1989 |
No limits |
| NIOSH Recommended Exposure Limit (REL) |
No limits |
Sources:
Mineral Information Institute
Jefferson Accelerator Laboratory
EnvironmentalChemistry.com |
|
Xenon is the chemical element with atomic number 54. At normal atmospheric conditons xenon is a colorless gas; its density is much heavier than air, and it is a Noble gas, and, thus, essentially unreactive. Xenon is present in the Earth's atmosphere in trace quantities. The chemical symbol for xenon is Xe.
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