Radon information, including Technical Data, Safety Data and its high purity properties, research, applications and other useful facts are discussed below. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included.
 Radon is a Block P, Group 18, Period 6 element. The number of electrons in each of Radon's shells is 2, 8, 18, 32, 18, 8 and its electronic configuration is [Xe] 4f14 5d106s26p6. In its elemental form radon's CAS number is 10043-92-2. The radon atom has a radius of 240.pm and it's Van der Waals radius is 200.pm. Radon is highly radioactive and a carcinogen.
Radon is produced by the radioactive decay of radium-226, which is found in phosphate, igneous and metamorphic rocks as well as uranium ores and shales. Radon was discovered by Friedrich Ernst Dorn (Germany) in 1900.
The origin of Radon is derived from the name of the element radium. At first Radon was called Niton, from the Latin word ‘Nitens’ which means shining.
Radon |
Radon |
Radon |
 Rádon |
 Rádon |
Radon |
Radon Abundance. The following table shows the abundance of radon and each of its naturally occurring isotopes on Earth along with the atomic mass for each isotope.
| Isotope |
Atomic Mass |
% Abundance on Earth |
| Rn-211 |
210.990585 |
- |
| Rn-222 |
222.017570 |
- |
Radon Safety Data. The safety data for radon metal, nanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin. Radon compounds have no biological role.
Ionization Energy. The ionization energy for radon (the least required energy to release a single electron from the atom in it's ground state in the gas phase) is stated in the following table:
| 1st Ionization Energy |
1037.08 kJ mol-1 |
| 2nd Ionization Energy |
- kJ mol-1 |
| 3rd Ionization Energy |
- kJ mol-1 |
Conductivity. As to radon's electrical and thermal conductivity, the electrical conductivity measured in terms of electrical resistivity @ 20 şC is - µOcm and its electronegativities (or its ability to draw electrons relative to other elements) is -. The thermal conductivity of radon is 0.0036 W m-1 K-1.
Thermal Properties of Radon. The melting point and boiling point for radon are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization.
| Heat of Fusion |
2.7 kJ mol-1 |
| Heat of Vaporization |
18.1 kJ mol-1 |
| Heat of Atomization |
0 kJ mol-1 |
Recent Research & Development for Radon
Measuring effective radium concentration with less than 5 g of rock or soil.
Perrier F, Girault F.
J Environ Radioact. 2012 May 23;113C:45-56. [Epub ahead of print]
PMID:
22634029
[PubMed - as supplied by publisher]
Lung cancer mortality in the European uranium miners cohorts analyzed with a biologically based model taking into account radon measurement error.
Heidenreich WF, Tomasek L, Grosche B, Leuraud K, Laurier D.
Radiat Environ Biophys. 2012 May 24. [Epub ahead of print]
PMID:
22622996
[PubMed - as supplied by publisher]
Non-iterative partial view 3D ultrasound to CT registration in ultrasound-guided computer-assisted orthopedic surgery.
Hacihaliloglu I, Wilson DR, Gilbart M, Hunt MA, Abolmaesumi P.
Int J Comput Assist Radiol Surg. 2012 May 25. [Epub ahead of print]
PMID:
22622884
[PubMed - as supplied by publisher]
From the Lost Radium Files: Misadventures in the Absence of Training, Regulation, and Accountability.
Aronowitz JN, Lubenau JO.
Int J Radiat Oncol Biol Phys. 2012 May 22. [Epub ahead of print]
PMID:
22622070
[PubMed - as supplied by publisher]
A STUDY OF ENVIRONMENTAL RADIOACTIVITY MEASUREMENTS IN THE SAMSUN PROVINCE, TURKEY.
Kucukomeroglu B, Maksutoglu F, Damla N, Cevik U, Celebi N.
Radiat Prot Dosimetry. 2012 May 22. [Epub ahead of print]
PMID:
22619352
[PubMed - as supplied by publisher]
Effects of alpha particle radiation on gene expression in human pulmonary epithelial cells.
Chauhan V, Howland M, Mendenhall A, O'Hara S, Stocki TJ, McNamee JP, Wilkins RC.
Int J Hyg Environ Health. 2012 May 17. [Epub ahead of print]
PMID:
22608759
[PubMed - as supplied by publisher]
Development of the primary measurement standard for gaseous radon-222 activity.
Kim BC, Lee KB, Park TS, Lee JM, Lee SH, Oh PJ, Lee MK, Ahn JK.
Appl Radiat Isot. 2012 Mar 4. [Epub ahead of print]
PMID:
22607994
[PubMed - as supplied by publisher]
Corrections to "CT Reconstruction From Parallel and Fan-Beam Projections by a 2-D Discrete Radon Transform".
Averbuch A, Sedelnikov I, Shkolnisky Y.
IEEE Trans Image Process. 2012 Jun;21(6):3119-20. No abstract available.
PMID:
22588115
[PubMed - in process]
Radium dial watches, a potentially hazardous legacy?
Gillmore GK, Crockett R, Denman T, Flowers A, Harris R.
Environ Int. 2012 May 10;45C:91-98. [Epub ahead of print]
PMID:
22580295
[PubMed - as supplied by publisher]
Allometric methodology for the assessment of radon exposures to terrestrial wildlife.
Vives I Batlle J, Copplestone D, Jones SR.
Sci Total Environ. 2012 Jun 15;427-428:50-9. Epub 2012 May 9.
PMID:
22575373
[PubMed - in process]
Prokaryotic and Eukaryotic Airborne Microorganisms as Tracers of Microclimatic Changes in the Underground (Postojna Cave, Slovenia).
Mulec J, Vaupotic J, Walochnik J.
Microb Ecol. 2012 May 9. [Epub ahead of print]
PMID:
22570119
[PubMed - as supplied by publisher]
Investigation of discrete imaging models and iterative image reconstruction in differential X-ray phase-contrast tomography.
Xu Q, Sidky EY, Pan X, Stampanoni M, Modregger P, Anastasio MA.
Opt Express. 2012 May 7;20(10):10724-49. doi: 10.1364/OE.20.010724.
PMID:
22565698
[PubMed - in process]
Completeness map evaluation demonstrated with candidate next-generation cardiac CT architectures.
Liu B, Bennett J, Wang G, De Man B, Zeng K, Yin Z, Fitzgerald P, Yu H.
Med Phys. 2012 May;39(5):2405-16.
PMID:
22559610
[PubMed - in process]
Sound field reconstruction using acousto-optic tomography.
Torras-Rosell A, Barrera-Figueroa S, Jacobsen F.
J Acoust Soc Am. 2012 May;131(5):3786-93.
PMID:
22559354
[PubMed - in process]
[Current epidemiological overview of the most frequent cancers in Spain. Implications for nursing care].
Martínez-González Tde J, Prada-Morales S, Díaz-Espinos MI, Bouza-Nebrera I, Lázaro-Escobar V, Serrano-Gallardo P.
Rev Enferm. 2012 Jan;35(1):44-51. Spanish.
PMID:
22558714
[PubMed - in process]
Interpretation of ground-level ozone episodes with atmospheric stability index measurement.
Zhang Z, Wang F, Costabile F, Allegrini I, Liu F, Hong W.
Environ Sci Pollut Res Int. 2012 May 1. [Epub ahead of print]
PMID:
22547253
[PubMed - as supplied by publisher]
Residential Radon Exposure, Histologic Types, and Lung Cancer Risk. A Case-Control Study in Galicia, Spain.
Barros-Dios JM, Ruano-Ravina A, Pérez-Ríos M, Castro-Bernárdez M, Abal-Arca J, Tojo-Castro M.
Cancer Epidemiol Biomarkers Prev. 2012 May 9. [Epub ahead of print]
PMID:
22539606
[PubMed - as supplied by publisher]
Exposure assessment for a cohort of workers at a former uranium processing facility.
Anderson JL, Daniels RD, Fleming DA, Tseng CY.
J Expo Sci Environ Epidemiol. 2012 Apr 25. doi: 10.1038/jes.2012.20. [Epub ahead of print]
PMID:
22534696
[PubMed - as supplied by publisher]
Nanoaerosols including radon decay products in outdoor and indoor air at a suburban site.
Smerajec M, Vaupotic J.
J Toxicol. 2012;2012:510876. Epub 2012 Feb 27.
PMID:
22523488
[PubMed - in process]
Free PMC Article
EGFR Somatic Mutations in Lung Tumors: Radon Exposure and Passive Smoking in Former- and Never-Smoking U.S. Women.
Taga M, Mechanic LE, Hagiwara N, Vähäkangas KH, Bennett WP, Alavanja MC, Welsh JA, Khan MA, Lee A, Diasio R, Edell E, Bungum A, Jang JS, Yang P, Jen J, Harris CC.
Cancer Epidemiol Biomarkers Prev. 2012 May 9. [Epub ahead of print]
PMID:
22523180
[PubMed - as supplied by publisher] |
