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Topic: Fermium


  
  Fermium - Wikipedia, the free encyclopedia
Fermium is a synthetic element in the periodic table that has the symbol Fm and atomic number 100.
A highly radioactive metallic transuranic element of the actinide series, fermium is made by bombarding plutonium with neutrons and is named after nuclear physicist Enrico Fermi.
Fermium (after Enrico Fermi) was first discovered by a team led by Albert Ghiorso in 1952.
en.wikipedia.org /wiki/Fermium   (468 words)

  
 fermium. The Columbia Encyclopedia, Sixth Edition. 2001-05   (Site not responding. Last check: 2007-11-07)
Fermium is a member of group IIIb of the periodic table.
The physical properties of fermium are largely unknown; its chemical properties are believed to be similar to those of the other members of the actinide series.
The eighth transuranium element to be discovered, fermium was first identified (1952) as fermium-255 (half-life about 20 hours) by Albert Ghiorso and his coworkers, who discovered it in residue from the first thermonuclear test explosion in the South Pacific.
www.bartleby.com /65/fe/fermium.html   (183 words)

  
 Station Information - Fermium
Fermium is a chemical element, in the periodic table Fermium has the symbol Fm and atom number 100.
The eighth discovered transuranium element of the actinide series, Fermium was identified by Albert Ghiorso and co-workers in 1952 in the debris from a thermonuclear explosion in the pacific during work involving the University of California Radiation Laboratory, Argonne National Laboratory, and Los Alamos Scientific Laboratory.
During 1953 and early 1954, while discovery of elements 99 and 100 was withheld from publication for security reasons, a group from the Nobel Institute of Physics in Stockholm bombarded 238U with 16O ions, and isolated a 30-min alpha-emitter, which they ascribed to 250-100, without claiming discovery of the element.
www.stationinformation.com /encyclopedia/f/fe/fermium.html   (262 words)

  
 Fermium - Wikipedia
Fermium ist ein synthetisches chemisches Element, das die Ordnungszahl 100 hat.
Fermium wurde beim Test der ersten amerikanischen Wasserstoffbombe, Ivy Mike am 1.
Fermium ist das schwerste chemische Element, das durch Neutroneneinfang aufgebaut werden kann.
de.wikipedia.org /wiki/Fermium   (55 words)

  
 Facts about Fermium
Fermium classified as an element in the Actinide series as one of the "Rare Earth Elements" which can located in Group 3 elements of the Periodic Table and in the 6th and 7th periods.
Fermium was discovered Albert Ghiorso in the USA in 1952.
Find out more facts about Fermium on the Periodic Table which arranges every 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.
www.facts-about.org.uk /science-element-fermium.htm   (435 words)

  
 Fermium   (Site not responding. Last check: 2007-11-07)
Fermium es un elemento sintético en la tabla periódica que tiene el símbolo Fm y número atómico 100.
Solamente las cantidades pequeñas de fermium se han producido o se han aislado siempre.
Fermium (después de Enrique fermi) primero fue descubierto por un equipo conducido por Albert Ghiorso en 1952.
www.yotor.net /wiki/es/fe/Fermium.htm   (495 words)

  
 DMS Periodic Table 2001: Fermium   (Site not responding. Last check: 2007-11-07)
This is because fermium was discovered during the hydrogen bomb testing at Los Alamos in 1953.
Fermium is useless and radioactive, like many of its brothers in the Rare Earth Family.
Since fermium is a metal, it is a solid at room temperature.
www.fcasd.edu /Schools/DMS/ptable/fm.htm   (62 words)

  
 fermium   (Site not responding. Last check: 2007-11-07)
1527 deg C. Fermium, the eighth transuranium element of the actinide series to be discovered, was identified by Ghiorso and co-workers in 1952 in the debris from a thermonuclear explosion in the Pacific in work involving the University of California Radiation Laboratory, the Argonne National Laboratory, and the Los Alamos Scientific Laboratory.
During 1953 and early 1954, while discovery of elements 99 and 100 was withheld from publication for security reasons a group from the Nobel Institute of Physics in Stockholm bombarded 238U with 16 O ions, and isolated a 30-min alpha-emitter, which they ascribed to 250-100, without claiming discovery of the element.
Twenty isotopes and isomers of fermium are known to exist.
www.speclab.com /elements/fermium.htm   (235 words)

  
 January 16 - Today In Science History   (Site not responding. Last check: 2007-11-07)
In 1953, a sample amounting to about 200 atoms of fermium (Fm, atomic number 100) was first by ion-exchange chromatography and identified at the University of California, Berkeley.
Like einsteinium, fermium was first isolated from the debris of the Nov 1952 test of the hydrogen-bomb (called the "Mike" event, conducted at Eniwetok Atoll in the Pacific Ocean).
Fermium was the eighth transuranium element of the actinide series to be discovered, and was named in honour of Enrico Fermi.
www.todayinsci.com /1/1_16.htm   (1674 words)

  
 Fermium by Brian m.   (Site not responding. Last check: 2007-11-07)
Fermium is a very rare man made element.
Discovered b Albert Ghiorso, in 1952, fermium was found in he debris of a thermal nuclear testing explosion.
Fermium can only be made two ways, by a thermonuclear explosion, or by adding 17 electrons o a uranium atom.
www.mvschools.org /ms/projects/EAGLE/red/brianmcc.htm   (211 words)

  
 Search: Fermium - Info.co.uk   (Site not responding. Last check: 2007-11-07)
Fermium was discovered by Choppin, Thompson, Ghioros and Harvey in 1952.
Fermium - An element from the Periodic Table based on the IOUPAC 1985 standard.
Fermium (Fm) is not in the standards library of the C. Taylor Company and SPI Supplies® DYOS Tool To Ask a Question or Make a Comment.
dpxml.infospace.com /infocom.uk/results?otmpl=dog/webresults.htm&qkw=Fermium&CMP=KNC-3LS480536328&infoad=1   (339 words)

  
 VIAS Encyclopedia: Fermium
(Enrico Fermi) Fermium, the eighth discovered transuranium element of the actinide series, was identified by Ghiorso and co-workers in 1952 in the debris from a thermonuclear explosion in the pacific during work involving the University of California Radiation Laboratory, Argonne National Laboratory, and Los Alamos National Laboratory.
During 1953 and early 1954, while discovery of elements 99 and 100 was withheld from publication for security reasons, a group from the Nobel Institute of Physics in Stockholm bombarded
Fm and heavier isotopes can be produced by intense neutron irradiation of lower elements, such as plutonium, using a process of successive neutron capture interspersed with beta decays until these mass numbers and atomic numbers are reached.
www.vias.org /encyclopedia/persys_fm.html   (236 words)

  
 It's Elemental - The Element Fermium
Fermium was discovered by a team of scientists led by Albert Ghiorso in 1952 while studying the radioactive debris produced by the detonation of the first hydrogen bomb.
Today, fermium is produced though a lengthy chain of nuclear reactions that involves bombarding each isotope in the chain with neutrons and then allowing the resulting isotope to undergo beta decay.
Fermium's most stable isotope, fermium-257, has a half-life of about 100.5 days.
education.jlab.org /itselemental/ele100.html   (132 words)

  
 Fermium   (Site not responding. Last check: 2007-11-07)
The longest lived fermium isotope lived a half life of 82 days.
Fermium is made by subjecting elements like uranium and plotomium to intense nuetron bombardment.
Uses: There are no known uses for Fermium and the truth is no one even knows what color it is.
www.mvschools.org /ms/projects/html/brick/fermium.htm   (362 words)

  
 Fermium
Ghiorso and co-workers identified it in 1952, in the debris from a thermonuclear explosion in the Pacific by collaborative research institutes.
Chemical properties of fermium have only been possible on tracer amounts, and in normal aqueous media only the (III) oxidation state appears to exist.
Sixteen (16) isotopes of fermium are known to exist.
www.azom.com /details.asp?ArticleID=1129   (174 words)

  
 fermium - definition by dict.die.net   (Site not responding. Last check: 2007-11-07)
fermium n : a radioactive transuranic metallic element produced by bombarding plutonium with neutrons [syn: Fm, atomic number 100]
fermium Symbol: Fm Atomic number: 100 Atomic weight: (253) Radioactive metallic transuranic element, belongs to the actinoids.
First identified by Albert Ghiorso and associates in the debris of the first hydrogen-bomb explosion in 1952.
dict.die.net /fermium   (66 words)

  
 Fermium Wins Heavyweight Title
Lasers probed the spectrum of light absorbed by fermium atoms using this chamber, in which ionized atoms are drawn toward the exit hole (white) in back.
Made in the 1952 detonation of the first thermonuclear bomb, the element fermium has since sat in a corner of the periodic table where few tools of chemistry reach.
Fermium is element 100--six doors past plutonium in the periodic table--and calculating the energies of its 100 electrons is a tricky business.
focus.aps.org /story/v11/st18   (690 words)

  
 Fermium   (Site not responding. Last check: 2007-11-07)
Fermium, named after Enrico Fermi, was discovered in 1953.
Like einsteinium, fermium was first isolated from the debris of the testing of the hydrogen-bomb in 1952.
Because it is short-lived, scientists doubt that enough fermium will ever be obtained to be weighed.
nobel.scas.bcit.ca /resource/ptable/fm.htm   (42 words)

  
 Lycos Search : Fermium
Fermium is a chemical element, in the periodic table Fermium has the...
The properties of the element fermium are given, including: chemical data...
Fermium is a synthetic element in the periodic table that has the symbol Fm and atomic...
search.lycos.co.uk /cgi-bin/pursuit?query=Fermium&cat=loc&lyca=MI&matchmode=and&mtemp=main&etemp   (202 words)

  
 100 Fermium
The choice of Fermium for element #100 has proven to be prescient since it is the last element to be synthesized using neutron caption reactions, which were extensively studied by Fermi.
Because of the military secrets, the American discovery was not made public at that time.
Glenn T. Seaborg, Early History of LBNL, A transcript of the lecture on the 65th Anniversary of Lawrence Berkeley National Laboratory, August 26, 1996 (on-line).
elements.vanderkrogt.net /elem/fm.html   (417 words)

  
 C&EN: IT'S ELEMENTAL: THE PERIODIC TABLE - EINSTEINIUM AND FERMIUM
After all, we had pioneered the heavy-element field and felt that there was much that we could offer in the way of help.
Both einsteinium and fermium were discovered in the debris of the "Mike" hydrogen bomb test.
A natural choice that was strongly supported by everyone was einsteinium for element 99 and fermium for element 100, and I had the honor of announcing this selection at the Geneva International Conference on the Peaceful Uses of Atomic Energy in 1955.
pubs.acs.org /cen/80th/einsteiniumfermium.html   (1499 words)

  
 Fermium (Fm) - Chemical properties, Health and Environmental effects
Chemical properties of fermium- Health effects of fermium- Environmental effects of fermium
Fermium doesn’t occur naturally, and has not been found in the earth’s crust, so there is no reason to consider its health hazards.
Fermium doesn’t occur naturally, and has not been found in the earth’s crust, so there is no reason to consider its environmental effects.
www.lenntech.com /Periodic-chart-elements/Fm-en.htm   (312 words)

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