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[IMG]http://cdn.physorg.com/newman/gfx/news/2012/searchforele.png[/IMG]
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Observed decay chain. Credit: RIKEN
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[B]The most unambiguous data to date on the elusive 113th atomic element has been obtained by researchers at the RIKEN Nishina Center for Accelerator-based Science (RNC). A chain of six consecutive alpha decays, produced in experiments at the RIKEN Radioisotope Beam Factory (RIBF), conclusively identifies the element through connections to well-known daughter nuclides. The groundbreaking result, reported in the Journal of Physical Society of Japan, sets the stage for Japan to claim naming rights for the element.[/B]
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The search for superheavy elements is a difficult and painstaking process. Such elements do not occur in nature and must be produced through experiments involving nuclear reactors or particle accelerators, via processes of nuclear fusion or neutron absorption. Since the first such element was discovered in 1940, the United States, Russia and Germany have competed to synthesize more of them. Elements 93 to 103 were discovered by the Americans, elements 104 to 106 by the Russians and the Americans, elements 107 to 112 by the Germans, and the two most recently named elements, 114 and 116, by cooperative work of the Russians and Americans.
With their latest findings, associate chief scientist Kosuke Morita and his team at the RNC are set follow in these footsteps and make Japan the first country in Asia to name an atomic element. For many years Morita's team has conducted experiments at the RIKEN Linear Accelerator Facility in Wako, near Tokyo, in search of the element, using a custom-built gas-filled recoil ion separator (GARIS) coupled to a position-sensitive semiconductor detector to identify reaction products. On August 12, those experiments bore fruit: zinc ions travelling at 10% the speed of light collided with a thin bismuth layer to produce a very heavy ion followed by a chain of six consecutive alpha decays identified as products of an isotope of the 113th element (Figure 1).
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[IMG]http://cdn.physorg.com/newman/gfx/news/2012/searchforele.jpg[/IMG]
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The layout of GARIS. Credit: RIKEN
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While the team also detected element 113 in experiments conducted in 2004 and 2005, earlier results identified only four decay events followed by the spontaneous fission of dubnium-262 (element 105). In addition to spontaneous fission, the isotope dubnium-262 is known to also decay via alpha decay, but this was not observed, and naming rights were not granted since the final products were not well known nuclides at the time. The decay chain detected in the latest experiments, however, takes the alternative alpha decay route, with data indicating that dubnium decayed into lawrencium-258 (element 103) and finally into mendelevium-254 (element 101). The decay of dubnium-262 to lawrencium-258 is well known and provides unambiguous proof that element 113 is the origin of the chain.
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[IMG]http://cdn.physorg.com/newman/gfx/news/2012/1-searchforele.png[/IMG]
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Focal plane detectors. Credit: RIKEN
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Combined with their earlier experimental results, the team's groundbreaking discovery of the six-step alpha decay chain promises to clinch their claim to naming rights for the 113th element.
"For over 9 years, we have been searching for data conclusively identifying element 113, and now that at last we have it, it feels like a great weight has been lifted from our shoulders," Morita said. "I would like to thank all the researchers and staff involved in this momentous result, who persevered with the belief that one day, 113 would be ours. For our next challenge, we look to the uncharted territory of element 119 and beyond."
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Source:
[URL]http://phys.org/news/2012-09-element.html[/URL]
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Nice
-snip-
Im an idiot
[QUOTE=WingedAssailant;37817273]they still havent found the zombie element...
[sp]Call of duty players will know what im talking about[/sp][/QUOTE]
Yes they have.
119 needs to be named Belgium.
[QUOTE=Apache249;37817339]119 needs to be named Belgium.[/QUOTE]
Or Belgiumium.
If I ever get around to naming an element it will be Procrastinatium.
This just sounds like a scam to get me to buy a new Periodic Table.
I wonder what they'll call it
First, I see an article on warping space to travel instantaneosly, requiring some kind of unknown element for fuel.
Then, I see an article on a new element.
Guys, the Combine will be here before you know it.
Last time I checked my school's Periodic table, we had 103 elements or something. I knew we have listed up to the 118 Ununoctium on newer tables, but the ones we ever used were never updated.
Not that you really need these elements yet either ways. They're mostly just artificial and unstable, so I can't really see a big use for it. Most of them just last in a few milliseconds, and some of the more stable ones can last several seconds.
It would be nice if they could continue on the other elements to get a more stable Isotope of them.
[QUOTE=Falcqn;37817950]I wonder what they'll call it[/QUOTE]
Maybe they wanna fuck the system and keep it at Ununtrium or something. Who knows. V:v:V
[QUOTE=Corey_Faure;37818003]requiring some kind of unknown element for fuel[/QUOTE]
exotic matter*
[QUOTE=kazookie;37818291]Last time I checked my school's Periodic table, we had 103 elements or something. I knew we have listed up to the 118 Ununoctium on newer tables, but the ones we ever used were never updated.
Not that you really need these elements yet either ways. They're mostly just artificial and unstable, so I can't really see a big use for it. Most of them just last in a few milliseconds, and some of the more stable ones can last several seconds.
It would be nice if they could continue on the other elements to get a more stable Isotope of them.[/QUOTE]
It isn't as easy as just doing more research to get the elements to be more stable. The reason they progressed through and made it as far as they could is because of the trends of the periodic table.
They hoped that when they got up to element 118 that they would continue to see the trends already presented in the periodic table and that would mean we would have a stable form of 118 since it would follow the "Noble Gas" trend.
So they are trying to find stable forms of elements, but not by working on one element, but by moving to elements that fit into trends.
Japan's got this.
Still no element zero.
so what does it actually do
[QUOTE=GameDev;37818448]so what does it actually do[/QUOTE]
Time travel
[img]http://www.facepunch.com/image.php?u=244899&dateline=1336178033[/img]
OPs avatar is very fitting.
[QUOTE=GameDev;37818448]so what does it actually do[/QUOTE]
Decays very quickly.
In case you didn't know,the name of element 113 is Ununtrium. Wacky name yes
0.667 milliseconds is a very short half-life, barely existing for a very brief moment. Not as useful as other heavy elements, but at least it's a step towards reaching the island of stability; what miraculous matter we could find in that small group of stable super-large nuclei is anyone's guess, though hopefully one of the stable elements on the island could be useful for at least something. I dunno about you guys, but I honestly don't see the use of the totally-unstable "pseudo-elements" that have half-lives measured in seconds or milliseconds, other than being accelerated really really fast towards a target to give it cancer or radiation poisoning, though a gun that fired those unstable atoms would need to smash atoms together in a way that means the particles actually hit their target without rapidly-decaying mere milliseconds after being fired.
[QUOTE=GameDev;37818448]so what does it actually do[/QUOTE]
It can fuel Iron Man's arc reactor.
[QUOTE=nVidia;37818356]Still no element zero.[/QUOTE]
Well since the number of the element depends on the number of protons, that'd just be a neutron (neutronium if more than one).
I wonder when we'll find Element Q (or something)
But in all seriousness, this is seriously intriguing. I really want to know more about it.
[QUOTE=IPK;37818687]In case you didn't know,the name of element 113 is Ununtrium. Wacky name yes[/QUOTE]
yeah no that's just "1-1-3-ium"
those are placeholder names until someone discovers them
they do that for quite a bit
Unununium?
[QUOTE=IPK;37818687]In case you didn't know,the name of element 113 is Ununtrium. Wacky name yes[/QUOTE]
probably just temporary.
the other Unun* elements got renamed earlier this year.
E.g. Ununquadium became Flerovium.
[QUOTE=Falcqn;37817950]I wonder what they'll call it[/QUOTE]
Tentaclerapium
Maybe this means that it will be getting a name soon.
Then just 115, 117 and 118 and the Standard Periodic Table will look complete.
[editline]27th September 2012[/editline]
[QUOTE=PvtCupcakes;37819445]probably just temporary.
the other Unun* elements got renamed earlier this year.
E.g. Ununquadium became Flerovium.[/QUOTE]
It happens as and when the IUPAP recognise them. I've got a science encyclopedia from 1995 that hardly has any properly named elements over 100. Names have been added every few years, some in the 90's, a couple in 2004 I think, and some in the last year or so.
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