रदरफोर्डियम

Rutherfordium Rutherfordium Rf 104 104 संक्रमण धातु रदरफोर्डियम एक रासायनिक तत्व है। इसका अर्धायु काल ~१.३ घंटे का होता है। आइसोटोप +Isotope half-lives and discovery years Isotope Half-life Decaymode Discoveryyear Reaction253Rf 00000.000048 48 μs α, SF 1994 204Pb(50Ti,n)10.1007/s002180050422 Spontaneous fission and alpha-decay properties of neutron deficient isotopes 257−253104 and 258106 1997 Zeitschrift für Physik A 359 4 415 1997ZPhyA.359..415A 8 Heßberger F. P. Hofmann S. Ninov V. Armbruster P. Folger H. Münzenberg G. Schött H. J. Popeko A. K. Yeremin A. V. Andreyev A. N. Saro S. 121551261 254Rf 00000.000023 23 μs SF 1994 206Pb(50Ti,2n) 255Rf 00002.3 2.3 s ε?, α, SF 1974 207Pb(50Ti,2n) Decay properties of neutron-deficient isotopes 256,257Db, 255Rf, 252,253Lr F. P. 8 Heßberger Hofmann, S. Ackermann, D. Ninov, V. Leino, M. Münzenberg, G. Saro, S. Lavrentev, A. Popeko, A.G. Yeremin, A.V. Stodel, Ch. European Physical Journal A 12 1 57–67 2001 10.1007/s100500170039 2001EPJA...12...57H 117896888 256Rf 00000.0064 6.4 ms α, SF 1974 208Pb(50Ti,2n) 257Rf 00004.7 4.7 s ε, α, SF 1969 249Cf(12C,4n) 257mRf 00004.1 4.1 s ε, α, SF 1969249Cf(12C,4n) 258Rf 00000.0147 14.7 ms α, SF 1969 249Cf(13C,4n) 259Rf 00003.2 3.2 s α, SF 1969 249Cf(13C,3n) 259mRf 00002.5 2.5 s ε 1969 249Cf(13C,3n) 260Rf 00000.0210 21 ms α, SF 1969 248Cm(16O,4n) 261Rf 00078.0 78 s α, SF 1970 248Cm(18O,5n)10.1016/0370-2693(70)90595-2 261Rf; new isotope of element 104 https://archive.org/details/sim_physics-letters-b_physics-letters_1970-06-08_32_2/page/95 1970 A. Ghiorso Nurmia, M. Eskola, K. Eskola P. Physics Letters B 32 2 95–98 1970PhLB...32...95G 261mRf 00004.0 4 s ε, α, SF 2001 244Pu(22Ne,5n)http://lch.web.psi.ch/files/anrep01/B-02heavies.pdf Evidence for isomeric states in 261Rf Dressler, R. Türler, A. amp PSI Annual Report 2001 2008-01-29 dead https://web.archive.org/web/20110707001918/http://lch.web.psi.ch/files/anrep01/B-02heavies.pdf 2011-07-07 262Rf 00002.3 2.3 s α, SF 1996 244Pu(22Ne,4n)10.1103/PhysRevC.53.2893 Spontaneous fission properties of 104262Rf 1996 Lane, M. R. Physical Review C 53 6 2893–2899 1996PhRvC..53.2893L Gregorich K. Lee D. Mohar M. Hsu M. Kacher C. Kadkhodayan B. Neu M. Stoyer N. Sylwester E. Yang J. Hoffman D. 9971276 8 263Rf 00900.0 15 min α, SF 1999 263Db(yes Electron,yes Electron Neutrino)http://www.ulrich-rieth.de/publikationen/RCA0301_059.PDF An EC-branch in the decay of 27-s263Db: Evidence for the new isotope263Rf Kratz, J. V. Radiochim. Acta 91 1–2003 59–62 2003 10.1524/ract.91.1.59.19010 Nähler A. Rieth U. Kronenberg A. Kuczewski B. Strub E. Brüchle W. Schädel M. Schausten B. Türler A. Gäggeler H. W. Jost D. T. Gregorich K. E. Nitsche H. Laue C. Sudowe R. Wilk P. A. 96560109 8 dead https://web.archive.org/web/20090225154858/http://www.ulrich-rieth.de/publikationen/RCA0301_059.PDF 2009-02-25 263mRf ? 00008.0 8 s α, SF 1999 263Db(yes Electron,yes Electron Neutrino) 265Rf 00066.0 1.1 min SF 2010 269Sg(—,α)Ellison P. Gregorich K. Berryman J. Bleuel D. Clark R. Dragojević I. Dvorak J. Fallon P. Fineman-Sotomayor C. etal New Superheavy Element Isotopes: 242Pu(48Ca,5n)285114 Physical Review Letters 105 2010 10.1103/PhysRevLett.105.182701 2010PhRvL.105r2701E 21231101 18 182701 https://digital.library.unt.edu/ark:/67531/metadc831769/ 266Rf 00023.0 23 s? SF 2007? 266Db(yes Electron,yes Electron Neutrino)?10.1103/PhysRevC.76.011601 2007 1 011601 76 Physical Review C Synthesis of the isotope 282113 in the Np237+Ca48 fusion reaction Oganessian, Yu. Ts. 1 2007PhRvC..76a1601O Utyonkov V. Lobanov Yu. Abdullin F. Polyakov A. Sagaidak R. Shirokovsky I. Tsyganov Yu. Voinov A. Oganessian Yuri Nuclei in the "Island of Stability" of Superheavy Elements Journal of Physics: Conference Series IOP Publishing 337 1 8 February 2012 1742-6596 10.1088/1742-6596/337/1/012005 012005 2012JPhCS.337a2005O free 267Rf 04680.0 1.3 h SF 2004 271Sg(—,α)Hofmann, S. The Euroschool Lectures on Physics with Exotic Beams, Vol. III Lecture Notes in Physics Springer 2009 203–252 10.1007/978-3-540-85839-3_6 764 Superheavy Elements Lecture Notes in Physics 978-3-540-85838-6 268Rf 00001.4 1.4 s? SF 2004? 268Db(yes Electron,yes Electron Neutrino)?Dmitriev S N Eichler R Bruchertseifer H Itkis M G Utyonkov V K Aggeler H W Lobanov Yu V Sokol E A Oganessian Yu T Wild J F Aksenov N V Vostokin G K Shishkin S V Tsyganov Yu S Stoyer M A Kenneally J M Shaughnessy D A Schumann D Eremin A V Hussonnois M Wilk P A Chepigin V I Chemical Identification of Dubnium as a Decay Product of Element 115 Produced in the Reaction 48Ca+243Am CERN Document Server 15 October 2004 http://cds.cern.ch/record/831577 5 April 2019 270Rf 00000.0200 20 ms?https://agenda.infn.it/getFile.py/access?contribId=80&sessionId=7&resId=0&materialId=slides&confId=5235 Exploration of Nuclear Structure and Decay of Heaviest Elements at GSI - SHIP agenda.infn.it Fritz Peter Heßberger 2016-09-10 SF 2010? 270Db(yes Electron,yes Electron Neutrino)? Isotopes of rutherfordium Rutherfordium has no stable or naturally occurring isotopes. Several radioactive isotopes have been synthesized in the laboratory, either by fusing two atoms or by observing the decay of heavier elements. Sixteen different isotopes have been reported with atomic masses from 253 to 270 (with the exceptions of 264 and 269). Most of these decay predominantly through spontaneous fission pathways.Six New Isotopes of the Superheavy Elements Discovered Berkeley Lab News Center 26 October 2010 https://newscenter.lbl.gov/2010/10/26/six-new-isotopes/ 5 April 2019 सन्दर्भ श्रेणी:रासायनिक तत्व श्रेणी:संक्रमण धातु श्रेणी:कृत्रिम तत्व