Talk:Uranium/Temp
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This is a temporary page created for the sole purpose of converting the current Uranium article over to the new format agreed upon in Wikipedia talk:WikiProject Elements/Archive 1. When this process is complete the content in this page will be moved to the main article and any relevant edits made to that version will be incorporated into this version (this page will then be deleted from the database). For an example of what this article will look like when complete, please visit Beryllium, for a clean copy of the template used here please visit Wikipedia:WikiProject Elements. See also periodic table to view the color scheme.
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| General | |||||||||||||||||||||||||||||||
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| Name, Symbol, Number | Uranium, U , 92 | ||||||||||||||||||||||||||||||
| Chemical series | Lanthanides | ||||||||||||||||||||||||||||||
| Group, Period, Block | _ , 7 , f | ||||||||||||||||||||||||||||||
| Density, Hardness | 19050 kg/m3, __ | ||||||||||||||||||||||||||||||
| Appearance | silvery-white metal | ||||||||||||||||||||||||||||||
| Atomic properties | |||||||||||||||||||||||||||||||
| Atomic weight | 238.0289 amu | ||||||||||||||||||||||||||||||
| Atomic radius (calc.) | __ (_) pm | ||||||||||||||||||||||||||||||
| Covalent radius | __ pm | ||||||||||||||||||||||||||||||
| van der Waals radius | __ pm | ||||||||||||||||||||||||||||||
| Electron configuration | [[[__|_]]]___ | ||||||||||||||||||||||||||||||
| e- 's per energy level | _, _ | ||||||||||||||||||||||||||||||
| Oxidation states (Oxide) | _ (__) | ||||||||||||||||||||||||||||||
| Crystal structure | __ | ||||||||||||||||||||||||||||||
| Physical properties | |||||||||||||||||||||||||||||||
| State of matter | __ (__) | ||||||||||||||||||||||||||||||
| Melting point | __ K (__ °F) | ||||||||||||||||||||||||||||||
| Boiling point | __ K (__ °F) | ||||||||||||||||||||||||||||||
| Molar volume | __ ×10-3 m3/mol | ||||||||||||||||||||||||||||||
| __ kJ/mol | |||||||||||||||||||||||||||||||
| 4th ionization potential | __ kJ/mol | ||||||||||||||||||||||||||||||
| Most stable isotopes | |||||||||||||||||||||||||||||||
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| SI units & STP are used except where noted. | |||||||||||||||||||||||||||||||
Uranium is a chemical element in the periodic table that has the symbol U and atomic number 92.
Contents |
[edit] Notable characteristics
[edit] Isotopes
Naturally occurring uranium is composed of 3 major stable isotopes, U-238, U-235, and U-234, with U-238 being the most abundant (99.3% natural abundance). These 3 isotopes are radioactive, creating radioisotopes, with the most {abundant and/or stable} being U-238 with a half-life of 4.5 x 10^9 years, U-235 with a half-life of 7 x 10^8 years, and U-234 with a half-life of 2.5 x 10^5 years.
[edit] Precautions
All isotopes and compounds of Uranium are toxic and radioactive. Toxicity can be lethal. In less than lethal doses toxicity is limited primarliy to recoverable kidney damage. Radiological effects are systemic. Uranium compounds in general are poorly absorbed by the lining in the lungs and may remain a radiological hazard indefinately. Exposure should be immediately reported to the CDC, EPA, NEMA, and local authorities.
[edit] External links
- symbol}/index.html WebElements.com - _
- symbol}.html EnvironmentalChemistry.com - _
- element number}.html It's Elemental - _
[edit] External links used only for conversion (please delete before pasting into main article)
but it isn't available for every element. The text may also be under a different name. They sometimes combine entries, such as iron and steel. If nothing comes up, then look for the element at http://minerals.usgs.gov/minerals/pubs/commodity/ .
- These databases are covered by more or less public domain licenses. The main thing that is asked for is some attribution (which isn't mandatory but would be nice to have on talk pages). This material is useful when creating the definition/introduction paragraphs.
- This is public domain isotope info and can be copied verbatim but it is very technical and usually only the first paragraph or two are useable at all (the focus of the USGS period table is hydrology and we needn't fill our period table with material that is that specialized). Not all elements are included in this source. Several months ago I ported over all the elements that they then had. Since then, however, they seem to have either added more elements to their database or I somehow missed some. --mav
[edit] Template for short-lived synthetic elements
This is a temporary page created for the sole purpose of converting the current [[_]] article over to the new format agreed upon in Wikipedia talk:WikiProject Elements/Archive 1. When this process is complete the content in this page will be moved to the main article and any relevant edits made to that version will be incorporated into this version (this page will then be deleted from the database). For an example of what this article will look like when complete, please visit Rutherfordium, for a clean copy of the template used here please visit Wikipedia:WikiProject Elements. See also periodic table to view the color scheme.
|Period]], Block
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| Known properties | |||||
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| Name, Symbol, Number | _, _, _ | ||||
| Chemical series | Actinides | ||||
| _, 7 , d | |||||
| Appearance | unknown; probably metallic, silvery white or gray |
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| Atomic weight | [_] amu | ||||
| Electron configuration | probably [Rn] _ | ||||
| e- 's per energy level | _,_ | ||||
| State of matter | Presumably a solid | ||||
__ is a synthetic element in the periodic table that has the symbol __ and atomic number __.
[edit] Notable characteristics
[edit] History
[edit] External links
[edit] External links used only for conversion (please delete before pasting into main article)
- number}.html Los Alamos National Laboratory - _
- name, lowercase}/ USGS _ Statistics and Information
- http://dict.org (input the name of the element)
- symbol, lowercase}_iig.html USGS Periodic Table - _
[edit] Notes
- Even though this text was paid for by CA State and US Federal tax dollars, it may be covered by a semi-proprietary license held by the UC Regents and therefore needs to be rewritten so that it passes the Google test (specifically they don't allow for commercial redistribution without permission which is not compatible with our license). The UC Regents claims copyright on most texts at LANL and the 3 emails I sent to them requesting the status of the perio text were never answered. In addition, the LANL periodic table hasn't been touched since 1997 but it has won several awards. --mav
- This is public domain material and can be copied verbatim but it isn't available for every element. The text may also be under a different name. They sometimes combine entries, such as iron and steel. If nothing comes up, then look for the element at http://minerals.usgs.gov/minerals/pubs/commodity/ .
- These databases are covered by more or less public domain licenses. The main thing that is asked for is some attribution (which isn't mandatory but would be nice to have on talk pages). This material is useful when creating the definition/introduction paragraphs.
- This is public domain isotope info and can be copied verbatim but it is very technical and usually only the first paragraph or two are useable at all (the focus of the USGS perio table is hydrology and we needn't fill our perio table with material that is that specialized). Not all elements are included in this source. Several months ago I ported over all the elements that they then had. Since then, however, they seem to have either added more elements to their database or I somehow missed some. --mav
