Fermium was named for the recently deceased Enrico Fermi and his invaluable contributions to the field of nuclear physics. Fermium was the eighth synthetic transuranium element of the actinide series to be discovered. Fermium-255 (half-life 20.07 hours) was identified in 1952 by teams of scientists from the Lawrence Berkeley National Laboratory, the Argonne National Laboratory and the Los Alamos Scientific Laboratory. The project was led by Albert Ghiorso. Fermium is usually produced using accelerators like cyclotrons now, although it has a special place in the periodic table as the highest numbered element that can be produced in a nuclear reactor, rather than by smashing atoms together in an accelerator.

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From Simple English Wikipedia, the free encyclopedia

Fermium Electron Configuration

Fermium (symbol Fm) is a chemical element. It has an atomic number of 100, which makes it at position 100 at the periodic table. Fermium cannot be found in nature; it has to be made. Scientists can create it by combining plutonium with neutrons at very high speeds and temperatures. It is named after Enrico Fermi.

Fermium Production

History[changechange source]

Fermium Named After

Albert Ghiorso and other scientists at the University of California, Berkeley first discovered fermium. They found the element in the fallout from the explosion of the first successful hydrogen bomb test. This test was on November 1, 1952. In the fallout, scientists also discovered another new element, Einsteinium. Because of the Cold War, the US military did not allow the scientists to publish their results in a scientific journal. However, they conducted other studies and published their research in 1954. The studies of nuclear fallout were declassified and published in 1955.

A group in the Nobel Institute for Physics in Stockholm also discovered isotopes of this element before the research of the Berkeley scientists was published. However, most agree that the Berkeley scientists were the first to discover fermium.

Fermium Properties

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