Fermium can be obtained, in microgram quantities, from the neutron bombardment of plutonium in a nuclear reactor.

Where can fermium be found?

Source: Fermium is a synthetic element and is not found naturally. It is produced in nuclear reactors in miniscule amounts from the neutron bombardment of plutonium by a long series of neutron capture reactions.

Where does fermium come from?

Fermium is produced by the bombardment of lighter actinides with neutrons in a nuclear reactor. Fermium-257 is the heaviest isotope that is obtained via neutron capture, and can only be produced in picogram quantities.