Properties

Atomic Number	100
CAS Registry Number	7440-72-4
Chemical Symbol	Fm

History

The atomic number is 100 and the chemical symbol is Fm. The name derives from the Italian born physicist Enrico Fermi who built the first man made nuclear reactor. The nuclide ... Fm was found in the debris of a thermonuclear weapon information. Thes explosion in 1952 by a collaboration of American scientists from the Argonne National Laboratory near Chicago Illinois the Los Alamos Scientific Laboratory in Los Alamos New Mexico and the University of California lab at Berkeley California. The longest half-life associated with this unstable element is 100 day 257Fm.

Holden, Norman E., (2004). History of the origin of the chemical elements and their discoverers. National Nuclear Data Center. Retrieved from http://www.nndc.bnl.gov/content/elements.html