Glenn T. Seaborg | Britannica

Glenn T. Seaborg

Contributor

BIOGRAPHY

University Professor of Chemistry; Associate Director-at-Large, Lawrence Berkeley Laboratory, University of California, Berkeley; Chancellor, 1958–61. Chairman, Atomic Energy Commission, 1961–71. Cowinner, Nobel Prize for Chemistry, 1951. Author of Man-Made Transuranium Elements.

Primary Contributions (1)

A color-coded periodic table of the elements displays each element's symbol and atomic number, with categories such as alkali metals, noble gases, halogens, transition metals, and actinoid elements distinguished by different background colors.

transuranium element

Transuranium element, any of the chemical elements that lie beyond uranium in the periodic table—i.e., those with atomic numbers greater than 92. Twenty-six of these elements have been discovered and named or are awaiting confirmation of their discovery. Eleven of them, from neptunium through…