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californium
English Wikipedia - The Free Encyclopedia
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Californium
Californium
is a
radioactive
metallic
chemical element
with symbol
Cf
and
atomic number
98. The element was first made in 1950 at the
University of California
Radiation Laboratory
in
Berkeley
, by bombarding
curium
with
alpha particles
(
helium-4
ions
). It is an
actinide
element, the sixth
transuranium element
to be
synthesized
, and has the second-highest atomic mass of all the elements that have been produced in amounts large enough to see with the
unaided eye
(after
einsteinium
). The element was named after the university and the state of
California
.
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