[meteorite-list] Superheavy element found in nature
From: Sterling K. Webb <sterling_k_webb_at_meteoritecentral.com>
Date: Tue, 29 Apr 2008 03:04:24 -0500 Message-ID: <42fc01c8a9cf$a3fc3b40$8250e146_at_ATARIENGINE> Superheavy Fans! If the Unbibium atom was made in your Super Supernova, it would have to be the result of lighter elements with extra neutron goodness being squeezed together hard enough to merge them into unbibium by a kind of condensate fusion. Now, supernovae happen because stars can't even fuse dinky little 26Fe: it tries; it fails; the failed star collapses -- Boom! A supernova is the sound of one hand clapping. Maybe that's the prime source of Superheavies, but maybe not. One of the best methods for producing the Superheavies is to bombard an Already-Heavy with rare neutron-rich isotopes. 20Calcium-48 is a favorite-- and it's cheap -- only $200,000 a gram, a price to make a meteorite dealer drool... Here's an very clear and understandable article about Superheavies by an expert, Yuri Oganessian: http://physicsworld.com/cws/article/print/19751 Oganessian is the discoverer of Element 118, temp name ununoctium. But, there are other ways to get a really energetic odd isotope -- cosmic rays. Ion accelerators are a mere 90% of lightspeed, but cosmic ray nuclei are in the 99.999...% class. So, they claim to have found the Unbibium atoms in a deposit of thorium, whoops! in 90Thorium-232. All we need is a cosmic ray that just happens to be one of the thirty-odd isotopes of Germanium, like 32Ge-60: 90Th-232 + 32Ge-60 = 122Ubb-292 The 32Ge-60 atom would have to have just the right speed to be able to merge with the thorium without exciting it so much it just goes to pieces, of course, but cosmic rays are variable in energy and are made up of every kind of nuclei from the lightest to the heaviest elements, so there's some 32Ge-60 out there somewhere. If some Superheavies are formed by cold fusion (that's what they call it -- it's not the other "cold fusion"), then meteorites might be a better place to look for the naturally occurring Superheavies than Earth rocks. The cosmic ray exposure of meteorites is greater, so the minute abundance of Superheavies might be too. If I were going hunting with a mass spectrometer, first thing I'd do is buy a bag of some NWA with thorium in its bulk composition. If what they found is unbibium, it's a light isotope; the "normal" atomic weight of unbibium would be 324, not 292. It's short 32 neutrons. They also say it could be an isotope of elements 124 or 126. Oddly, one theory of how to align the extended periodic table place cerium, thorium, and unbibium in an extended "group." What we want is to find (a big chunk of) is the elements on "the Island of Stability" that are long-lived, super-dense, super-strong, and have other strange properties we can exploit! http://en.wikipedia.org/wiki/Island_of_stability Here's an extended Periodic Table that shows all the elements that don't exist, but may exist afterall! http://www.apsidium.com/ext_pt/expertab.pdf Sterling K. Webb ---------------------------------------------------------------------- ----- Original Message ----- From: "Darren Garrison" <cynapse at charter.net> To: <meteorite-list at meteoritecentral.com> Sent: Tuesday, April 29, 2008 12:14 AM Subject: [meteorite-list] Superheavy element found in nature http://arxivblog.com/?p=385 http://arxiv.org/ftp/arxiv/papers/0804/0804.3869.pdf This is meteorite related in that, well, if this finding pans out, then the element has to be supernova generated, and present in meteorites (and meteorite parent bodies), too. And, depending on the chemical properties, maybe even more highly concentrated in meteorites than in the Earth's crust. If you look hard enough, you might find them in meteorites. (But mostly, just a cool story) ______________________________________________ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list at meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Received on Tue 29 Apr 2008 04:04:24 AM PDT |
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