Photo: Atomic Energy Commission. (1946 - 01/19/1975) — Wikimedia Commons · Public domain
Glenn T. Seaborg
1912–1999 · United States · Born 1900–1939
Nobel Chemistry 1951
Co-discovered plutonium and other transuranium elements and proposed the actinide concept for the periodic table.
Nobel-winning work
The 1951 Nobel Prize in Chemistry, shared with Edwin McMillan, honored discoveries in the chemistry of transuranium elements. At Berkeley, Seaborg's team isolated and identified plutonium-239 in 1941 and went on to discover the elements from americium to mendelevium; his actinide hypothesis moved them to an f-series beneath the lanthanides, reshaping the periodic table.