fermium

Fermium is a chemical element with the symbol Fm and atomic number 100. It is a radioactive actinide element that is named after Enrico Fermi, an Italian-American physicist who played a major role in the development of nuclear physics.

Fermium is a silvery-white metal that is very rare in nature. It is not found in the Earth's crust, but it can be created by bombarding uranium-238 with neutrons.

Fermium is a very unstable element. Its most stable isotope, fermium-257, has a half-life of only 100.5 days. This means that half of the fermium-257 atoms in a sample will decay into other elements in 100.5 days.

Fermium is a very important element for scientists who study nuclear physics. It is used to study the properties of other radioactive elements and to create new elements.

Fermium was named after Enrico Fermi, the Italian physicist who developed the theory of the neutron.