Fermium
Name
Fermium
Symbol
Fm
Atomic Number
100
Atomic Mass
257 atomic mass units
Number of Protons
100
Number of Neutrons
157
Number of Electrons
100
Melting Point
1527.0° C
Boiling Point
Unknown
Density
Unknown
Normal Phase
Synthetic
Family
Rare Earth Metals
Period
7
Cost
Unavailable
Origin of Name
After
Enrico Fermi
Date and Place of Discovery
In 1952 from the debris of the thermonuclear explosion at Eniwetok in the Pacific during
Operation Ivy
The work was supervised by the
University of California Radiation Laboratory
,
Argonne National Laboratory
, and
Los Alamos Scientific Laboratory
.
Discovered by
Gregory R. Choppin
,
Albert Ghiorso
, B. G. Harvey and
Stanley G. Thompson
Common Compounds
Fermium chloride
(FmCl
2
)
Interesting facts
It is very radioactive.
It is created by bombarding plutonium with neutrons.
Only a very little amount of it has been produced so little is known about its chemical characteristics.
Its discovery was kept secret until 1955 due to the Cold War.
Common Uses
There are no known uses.
Photo Courtesy of
Lenn Tech
Chemical Elements
ChemSoc
Jefferson Lab
Web Elements
Wikipedia
Fermium Atomic Structure
Elements by Name
Elements by Number
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