Science

What is fermium? »Its definition and meaning

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It is element number 100 in the periodic table, whose sign is Fm and atomic weight 257. As is characteristic of chemicals within the actinide division, it is synthetic, that is, it is created artificially, in addition to being highly radioactive. At least 16 different isotopes of Fm are known, which have very short half-lives, such as Fm-258, which rapidly disintegrates after 0.38 milliseconds; even so, there is Fm-57 which, as in all chemical compounds, represents the most stable isotope or with a relatively longer life, disappearing after 100 days after its creation.

Albert Ghiorso, a chemist known for discovering different compounds in the periodic table, like his colleagues T. Seaborg, Ralph A. James, was the one who discovered the existence of fermium, during experiments carried out in 1952, among which highlights the explosion of a hydrogen bomb. The remains of the destroyed artifact were analyzed and made with actinide, which was in a natural state; then he found a way to produce it, bombarding plutonium with neutrons, inside a reactor. The term that baptized the element comes from Enrico Fermi, the name of an Italian-American physicist.

Fermium is not used in industry, so it is of low production; It is unknown how its crystalline structure would be, since the compounds that have been synthesized are of low density and, together with its short life, it has not been possible to analyze it completely. It cannot be found in the environment, except for nuclear explosions that can result in large concentrations of radioactive chemicals.