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Topic: Rutherfordium

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Dubnium

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Seaborgium

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	It's Elemental - The Element Rutherfordium
		They bombarded atoms of plutonium-242 with ions of neon-22, forming what they believed to be atoms of rutherfordium-260 and four free neutrons.
		Rutherfordium's most stable isotope, rutherfordium-267, has a half-life of about 1.3 hours and decays through spontaneous fission.
		Due to the small amounts produced and its short half-life, there are currently no uses for rutherfordium outside of basic scientific research.
	education.jlab.org /itselemental/ele104.html (168 words)

	Facts about Rutherfordium
		Rutherfordium is classified as a "Transition Metal" which are located in Groups 3 - 12 of the Periodic Table.
		Rutherfordium was synthesized by Albert Ghiorso in 1969 at the University of California and named in honor of Ernest Rutherford, a New Zealand chemist and physicist.
		Rutherfordium was synthesized by Albert Ghiorso in 1969 at the University of California.
	www.facts-about.org.uk /science-element-rutherfordium.htm (458 words)

	Rutherfordium Information Center - illustration of rutherfordium
		Rutherfordium (Eka-Hafnium) is a chemical element in the periodic table that has the symbol Rf and atomic number 104.
		Rutherfordium is the first transactinide element and it is predicted to have chemical properties similar to hafnium.
		Rutherfordium (named in honor of Lord Rutherford of Nelson) was reportedly first synthesized in 1964 at the Joint Nuclear Research Institute at Dubna does the element rutherfordium have an odor (U.S.S.R.).
	www.scipeeps.com /Sci-Chemistry_Topics_Pr_-_R/Rutherfordium.html (284 words)

	rutherfordium. The Columbia Encyclopedia, Sixth Edition. 2001-05
		The syntheses of at least 10 isotopes of rutherfordium, with half-lives ranging from 0.5 msec (Rf-254) to 65 sec (Rf-261), have been confirmed.
		In 1994 a committee of the International Union of Pure and Applied Chemistry (IUPAC), convened to resolve naming disputes for the transactinide elements, recommended that element 104 be named dubnium in recognition of the work done at the Dubna laboratory.
		The committee also recommended that element 106, which had been called seaborgium by the American team that discovered it, be called rutherfordium.
	www.bartleby.com /65/ru/ruthrfdm.html (401 words)

	The Element Rutherfordium
		Rutherfordium was synthesized by Albert Ghiorso in 1969
		Check out Rutherfordium on the Periodic Table which arranges each chemical element according to its atomic number, as based on the periodic law, so that chemical elements with similar properties are in the same column.
		Our Periodic Table is simple to use - just click on the symbol for Rutherfordium for additional information and for an instant comparison of the Atomic Weight, Melting Point, Boiling Point and Mass - G/cc with any other element.
	www.periodic-table.org.uk /element-rutherfordium.htm (357 words)

	Chemistry : Periodic Table : rutherfordium : key information
		Rutherfordium is a synthetic element that is not present in the environment at all.
		Here is a brief summary of the isolation of rutherfordium.
		Isolation of an observable quantity of rutherfordium has never been achieved.
	www.webelements.com /webelements/elements/text/Rf/key.html (139 words)

	C&EN: IT'S ELEMENTAL: THE PERIODIC TABLE - RUTHERFORDIUM
		Rutherfordium was named “unnilquadium,” which is the Latin word code for 104 (un = 1, nil = 0, and quad = 4).
		For rutherfordium, it concluded: The chemical experiments in Dubna [published in 1969 and 1970] and the Berkeley experiments [published in 1969] were essentially contemporaneous and each show that element 104 had been produced.
		In June 1995, the American Chemical Society decided to adopt the names rutherfordium and seaborgium for elements 104 and 106, respectively, for its journals and magazines.
	pubs.acs.org /cen/80th/rutherfordium.html (866 words)

	Amazon.com: rutherfordium (Site not responding. Last check: )
		07 Rf Rutherfordium 104 (261) Sm Samarium 62...
		101.107 12.37 2250 4900 0.239 Rutherfordium Rf 104 261.11 -...
		101.107 12.37 2250 4900 0.239 Rutherfordium Rf 104 261.11 - -...
	www.amazon.com /s?ie=UTF8&keywords=rutherfordium&tag=athensohionet&index=blended&link_code=qs&page=1 (983 words)

	Ernest Rutherford - Scientist Supreme
		The isotope of element 104 thus produced survived typically less than four seconds so could be uniquely identified by its half-life and the energy of the alpha particles it emitted in the process of spontaneous radioactive decay.
		In November of 1969, at celebrations marking the centennial of Mendeleev, the father of the periodic table, Al Ghiorso proposed that element 104 be named rutherfordium (Rf) because Ernest Rutherford was one of his heroes.
		As you read this there will most likely be not one atom of rutherfordium in existence, unless one of the three groups are painstakingly manufacturing it for further experiments.
	www.rutherford.org.nz /hr104.htm (1785 words)

	A Periodic Table of the Elements From Mineral Information Institute (Site not responding. Last check: )
		Its chemistry and appearance are not known with any certainty, although the chemistry is believed to be similar to hafnium.
		Rutherfordium is too rare to have any commercial or industrial application.
		Obtained from: Rutherfordium is obtained by particle bombardment of californium or curium.
	www.mii.org /periodic/Rf.htm (148 words)

	104 Rutherfordium
		Rutherfordium does not occur in nature, and it has no isotopes that last long enough to allow significant quantities to be accumulated.
		Amusingly, this ampule is labeled Kurchatovium, a name for this element which was contested until 1997 when it was replaced by Rutherfordium as part of an international settlement involving a total of nine element names and a lot of horse trading.
		To learn more about the set you can visit my page about element collecting for a general description and information about how to buy one, or you can see photographs of all the samples from the set displayed on my website in a periodic table layout or with bigger pictures in numerical order.
	www.theodoregray.com /PeriodicTable/Elements/104/index.html (330 words)

	Michael Swanwick's Periodic Table of Science Fiction
		Rutherfordium was discovered by the multitalented physicist and politician, Rutherford B. Hayes.
		His discovery of the element named after him was incidental to this research.
		Rutherfordium is the only element ever to be discovered by a standing American president.
	www.scifi.com /scifiction/elements/rutherfordium.html (191 words)

	Rutherfordium (Rf) - Chemical properties, Health and Environmental effects
		Chemical properties of rutherfordium - Health effects of rutherfordium - Environmental effects of rutherfordium
		Rutherfordium does not have any application and little is known about it.
		Rutherforium is not found free in the environment, since it is a synthetic element.
	www.lenntech.com /Periodic-chart-elements/Rf-en.htm (147 words)

	104 Rutherfordium
		Rutherfordium en de lb nl af fy da sv no
		The American Chemical Society proposed Rutherfordium, the name given by Ghiorso a.o.
		The name and symbol Rutherfordium (Rf) was ratified by the International Union of Pure and Applied Chemistry (IUPAC) Council meeting in Geneva during August 1997 (see "Naming the transfermium elements" on the Mendelevium page).
	www.vanderkrogt.net /elements/elem/rf.html (394 words)

	Rf
		They mixed atoms of plutonium-242 with ions of neon-22 to form what they believed to be atoms of rutherfordium-260 and four free neutrons.
		group, and the debate for credit for the discovery of rutherfordium is still going on.
		Some other names for rutherfordium are Unnilquadium (Unq), and Dubnium (Db).
	home.earthlink.net /~danieldorsey/periodictable/104.htm (219 words)

	Rutherfordium - Periodic Table of the Elements
		Rutherfordium was discovered by workers at the Nuclear Institute at Dubna (USSR) and by workers at the University of California, Berkeley (USA) in 1964.
		Rutherfordium was made by bombarding californium-249 with beams of carbon-12 and 13.
		Six isotopes of rutherfordium have so far been identified.
	www.ktf-split.hr /periodni/en/rf.html (91 words)

	Rutherfordium - Rf (Site not responding. Last check: )
		Rutherfordium - Rf Rutherfordium - Rf Atomic Number
		Elements 101 to 106 were discovered between 1955 and 1974 by groups in California at the Lawrence Livermore National Laboratory and the Lawerence Berkeley Laboratory and the Joint Institute for Nuclear Research, Dubna, Russia.
		Rutherfordium was made in 1969 by a team headed by Albert Ghiorso.
	www.mpcfaculty.net /mark_bishop/Rutherfordium_Rf.htm (54 words)

	Web Directory » Web Directory » Science » Chemistry » Elements » Rutherfordium
		ChemGlobe: Rutherfordium - Electronic and thermal data along with an isotope table.
		EnvironmentalChemistry.com: Rutherfordium - Atomic structure and table of nuclides.
		Lenntech: Rutherfordium - Physical data and chemical properties.
	www.dcpages.com /DC_ODP/?c=Science/Chemistry/Elements/Rutherfordium (163 words)

	Rutherfordium (Site not responding. Last check: )
		The Berkeley group believe their identification of 258-104 if corect, but they do not attach the same degree of confidence to this work as to their work on 257-104 and 259-104.
		The Berkeley group proposes for the new element the name rutherfordium (symbol Rf), in honor of Ernest R. Rutherford, New Zealand physicist.
		The claims for discovery and the naming of Element 104 are still in question.
	www.up.ac.za /academic/periodic.table/104.html (489 words)

	Rutherfordium
		Information resources on Rutherfordium and the chemistry and physics of Rutherfordium.
		rutherfordium (Rf), dubnium (Db) and Seaborgium (Sg) are found to be similar to their homologs in the periodic table in group IV, V and VI respectively.
		This overview summarizes gas chemical studies of transactinides using two approaches, gas thermochromatography and isothermal gas chromatography.
	www.chemlin.net /chemical-elements/rutherfordium.htm (522 words)

	Rutherfordium (Rf) (Site not responding. Last check: )
		As of January 1995 it was thought that eleven isotopes of Element 104 have been identified.
		The Berkeley group proposed for the new element the name rutherfordium (symbol Rf), in honor of Ernest Rutherford, New Zealand physicist.
		The International Union of Pure and Applied Physics proposed using the neutral temporary name, unnilquadium and [later] recommended the name dubnium, with symbol Db, be used, even though many scientists used the name rutherfordium for many years.
	www.sunysccc.edu /academic/mst/ptable/unq.html (494 words)

	Rutherfordium - ENCYCLOPEDIA - The History Channel UK
		In 1994 a committee of the International Union of Pure and Applied Chemistry (IUPAC), convened to resolve naming disputes for the transactinide elements, recommended that element 104 be named dubnium
		by the American team that discovered it, be called rutherfordium.
		Except as otherwise permitted by written agreement, the following are prohibited: copying substantial portions or the entirety of the work in machine readable form, making multiple printouts thereof, and other uses of the work inconsistent with U.S. and applicable foreign copyright and related laws.
	www.thehistorychannel.co.uk /site/search/search.php?word=ruthrfdm (482 words)

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