Chemical Elements

Dubna, Russia

Untitled In 1967, research scientists at the Joint Institute for Nuclear Research in Dubna, Russia, report the creation of element 105 by bombarding Americium-243 atoms with Neon-22 ions. The Soviet investigators, led by G. N. Flerov, claim the production of isotopes having mass numbers of 260 and 261, and respective half-lives of 0.1 second and 3 seconds.

by Jeff Moran