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Article changed over to new Wikipedia:WikiProject Elements format by maveric149. Elementbox converted 14:38, 1 July 2005 by Femto (previous revision was that of 22:48, 19 June 2005).
Some of the text in this entry was rewritten from Los Alamos National Laboratory - Krypton. Additional text was taken directly from USGS Periodic Table - Krypton, from the Elements database 20001107 (via dict.org), Webster's Revised Unabridged Dictionary (1913) (via dict.org) and WordNet (r) 1.7 (via dict.org). Data for the table was obtained from the sources listed on the main page and Wikipedia:WikiProject Elements but was reformatted and converted into SI units.
I moved this page from plain Krypton to Krypton (element) to reduce ambiguity with Krypton (planet), which, as the home planet of Superman, is probably far more widely known. I will amend the base page Krypton to show both options.
See discussion in Wikipedia:Disambiguation
Oh lighten up.
He might be blunt, but I think he's probably right here. The programming language and the fictional planet are probably less significant than the element after which they were both named. Ed Sanville 03:12, 18 December 2005 (UTC)
The speed of sound in Krypton gas as given at Allmeasures and WebElements is the speed of sound in Krypton liquid (conditions to be checked tomorrow). For the speed of sound in Krypton gas we found no available handbook value (although looking for it very hard in the second largest university library in germany). We (Projektpraktikum at the University of Constance) measured the speed of sound in 99.997 % pure krypton gas at 23°C (room temperature) and standard pressure using resonance in a closed tube and got as a preliminary result . (Will be rechecked when measurements are finished, some corrections for measurements in a tube have not yet been applied. For data contact johannes.ebke - at - uni-konstanz.de)
For those of you who rather believe established sources, see for example this Article from BBC. It doesn't state the exact velocity, but gives a general sense of the value to expect.
See also talk:WikiProject Elements
(Same person speaking as above) We have some time ago completed the corrections mentioned, and 220 m/s is a quite accurate value. Anyone who wants more values can use the formula at Ideal Gas. (extrapolated to zero frequency, there is noticeable dispersion so that at high frequencys (we measured up to 1500 Hz) it is rather 220,7 m/s) Our value for 0°C (211 m/s) is perhaps more accurate because the Temperature could be controlled better. (but still since there is dispersion we get up to 212 m/s with 1500 Hz) But since 23°C is approx. room temperature i think we should leave it at that... SiriusGrey 17:18, 25 March 2006 (UTC)
Is kryptonate a molecule containing krypton or a clathrate containing krypton? From the name and the article, I would say the clathrate one, but I wanted to be sure (if they exist, what are molecules containing krypton called?). Once the definition is given, perhaps kryptonate should redirect to this article, as I don't think there's enough information for a separate article. -- Kjkolb 23:07, 17 December 2005 (UTC)
what is the origin name of krypton...and what krypton uses... —Preceding unsigned comment added by 74.116.113.241 ( talk)
The lead is copied from the first few lines of the Notable Characteristics section. The lead is supposed to be a summary of the entire article, not a duplicate of a later section. -- Cryptic C62 · Talk 10:21, 23 March 2007 (UTC)
GA class is not part of project assessment scales, and GAs are not tracked by WP Bot 1.0. The assessment level has been set to B class. -- Cryptic C62 · Talk 21:09, 28 March 2007 (UTC)
Good article, excellent referencing. Some suggestions:
TimVickers 02:50, 22 March 2007 (UTC)
Conducting another GA review as part of the WikiProject Good Article sweep. After 6 months, I concur with the original GA review on this article, and it continues to meet the GA criteria. It's still very short, and various sections could be expanded. But overall, the content is significant enough to keep GA status. Dr. Cash 02:12, 1 September 2007 (UTC)
Sorry for the mistake. My internet connection is too slow that I pushed the button after the vandalism has been reverted. Sorry. -- Der yck C. 15:17, 7 May 2007 (UTC)
I have changed 'and' to 'but' in the last sentence of the first paragraph in 'Isotopes' because the use of Krypton-81 in dating waters is counter-intuitive when considering its volatility. Let me know if you think this is wrong. —Preceding unsigned comment added by Pre1mjr ( talk • contribs) 15:12, 4 September 2007 (UTC)
I recall a discussion many years ago regarding the release of Krypton from certain nuclear reactor processes. The isotopes released have a tendency to persist in the atmosphere to a far greater extent than any released "naturally". Krypton is either a greenhouse gas itself, or contributes to the greenhouse "effect" somehow. During this discussion, concern was expressed regarding the potential for global warming caused by the release of Krypton. Wouldn't it be ironic if additional Nuclear Fission Reactors were constructed to provide a non-carbon dioxide producing source of electricity production, only to find out that the real greenhouse gas culprit all along has been atmospheric Krypton (they type released by nuclear power stations). Instead of a solution to global warming, billions would have been spent on power plants that actually cause it.
Oops.
In any case, perhaps someone with more proven knowledge of the relationship between Krypton, Nuclear Reactors, and Global Warming could contribute this information to this WIKI entry.
Bob
Edmonton
Canada
bulkspin@yahoo.com —Preceding
unsigned comment added by
66.222.198.153 (
talk)
18:46, 21 September 2007 (UTC)
This paragraph:
...was pretty garbled. I pared it down to the minimum that made ense, but I couldn't replace the lost meaning. Maybe somebody with more knowledge of the subject could repair it from an earlier version. Particularly, the "theological" reference looked like vandalism. rowley ( talk) 21:59, 16 February 2009 (UTC)
I think we are now up to 32 plus 8 metastable isotopes for a total of 40 isotopes, twice what the article cites. Can someone update the section's lead sentence with an appropriate reference? 65.80.178.227 ( talk) 03:53, 14 December 2009 (UTC)
It's missing a negative symbol for Fahrenheit.
Someone please check configuration. I doubt it's correct but I'm not skilled chemist so I won't make any changes. Unknown ( talk) 20:34, 9 November 2010 (UTC) —Preceding unsigned comment added by 94.142.234.1 ( talk)
Misprints here. If the boiling temperature is 120 K, then the vapour pressure at 120 K should be 1 atm = 100 kPa, NOT 1 kPa as stated. Please correct, someone with access to source data? 124.176.23.97 ( talk) 09:47, 11 June 2012 (UTC)thortveitite.
I noticed while trying to check my work for a chemistry assignment that all the elements seemed to show the wrong information in a google search which led me to check Wikipedia's entries on the matter. I am in a bit of a time crunch between classes, so I am just going to leave a note here for now pointing this out. I figure it is either because of a bot, some master table, or possible vandalism. Examples include Iodine showing Krypton's configuration while Krypton shows Argon's. I haven't explored further, but the clues leave me in little doubt that this is through all the elements. Nick F. S. 207.233.102.21 ( talk) 16:57, 10 September 2014 (UTC)
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The section on the use of Krypton in the definition of the meter jumps back and forth in the chronology, making it confusing. It also gives an inaccurate rounded reciprocal of the formal definition, and and it's simply wrong in its claim about a 1927 redefinition of the metre; in 1927 the CGPS adopted the IAU's cadmium-based spectroscopic definition of the angstrom. This was a separate unit from the metre (although chosen to be very close to 10−10 m), as technology at the time limited the accuracy with which wavelengths and macroscopic objects could be compared. The current text is:
I'd like to replace that paragraph with:
The 1927 conference also technically redefined the metre by clarifying the measurement conditions for the international prototype metre, but that seems like too much detail. One open issue is whether to refer to the 1927 or 1907 definition of the angstrom; it was defined by the IAU in 1907, and adopted by the CGPM in 1927, so either date is reasonable. 71.41.210.146 ( talk) 00:58, 25 September 2014 (UTC)
References
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Suggestion: New entry in the Chemistry section [at the very end]
"Recently, Zaleski-Ejgierd et al. predicted that a whole new class of krypton compounds - krypton oxides - should stabilize thermodynamically at elevated pressures. In particular, krypton monoxide (KrO) should form spontanously from mixture of pure elements at approximatelly 285 GPa (2.85 million atmospheres). In it krypton atoms are expected to form strong covalent bonds with the oxygen atoms [1].
[1] P. Zaleski-Ejgierd and P. M. Łata, “Krypton oxides under pressure”, Scientific Reports 6, 18938 (2016) [1]
Teopze ( talk) 11:59, 4 March 2016 (UTC)
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According to the helium article there is more helium in the atmosphere than krypton. Why the inconsistency? Gjxj ( talk) 21:20, 11 December 2020 (UTC)
Hello,
As I cannot edit this article myself, I decided to make a note of an error I noticed. In the Chemistry section, there is a reaction formula which goes as follows: 2KFr -> 2Kr + F2 Now on the left we see some Potassium Francium compound, which should be 2KrF, a Krypton Fluorine compound. — Preceding unsigned comment added by TheFrunk ( talk • contribs) 21:00, 14 March 2022 (UTC)