element named for Alfred Nobel
atomic mass 259.0 amu
1,520º F (827º C)
boiling point unknown
Nobelium is classified as a metal.
Nobelium can only be produced
by nuclear bombardment.
Since only miniscule amounts of
nobelium have ever been produced, it has no use
outside of basic scientific research.
In 1957, a group of scientists at the Nobel
Institute of Physics in Stockholm, Sweden,
Argonne National Laboratory in Chicago, Illinois,
and the Atomic Energy Research Establishment in
Harwell, England, announced the discovery of a
new element. They had created the element, which
they named in honor of Alfred Nobel, by
bombarding a target of curium-244 with ions of
carbon-13 in a cyclotron. The isotope they
created had a half-life of 10 minutes.
In 1958, another group of scientists at the
Lawrence Radiation Laboratory University of
California at Berkeley attempted to confirm the
Nobel group's discovery. The Berkeley group was
able to produce nobelium-254, with a half-life of
three seconds, but was unable to produce any
isotope of nobelium that matched the one produced
in Stockholm. A third group, working at the Joint
Institute for Nuclear Research in Dubna, Russia,
in 1966, was also unable to replicate the Nobel
Institute's results, but was able to confirm the
Berkeley group's work. Credit for discovering
nobelium was eventually given to the scientists
in Berkeley, who chose to keep the name nobelium.
Jefferson Lab http://education.jlab.org/itselemental/ele102.html
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