Nobel Prize in Chemistry 1951
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Edwin Mattison McMillan
Nobel Prize in Chemistry 1951
Born: 18 September 1907, Redondo Beach, CA, USA
Died: 7 September 1991, El Cerrito, CA, USA
Affiliation at the time of the award: University of California, Berkeley, CA, USA
Prize motivation: “for their discoveries in the chemistry of the transuranium elements”
Prize share: 1/2
Work
The heaviest element existing in nature is uranium, which has an atomic number of 92. All of the heavier elements are radioactive and quickly decay. It has become apparent, however, that they can be created by bombarding atoms with particles and atomic nuclei. In 1940 Edwin McMillan used a particle accelerator to radiate uranium with neutrons and proved that an element with an atomic number of 93 had been created. It was named neptunium. McMillan also contributed to the mapping of additional heavy elements and isotopes.
Six prizes were awarded for achievements that have conferred the greatest benefit to humankind. The 12 laureates' work and discoveries range from proteins' structures and machine learning to fighting for a world free of nuclear weapons.
See them all presented here.
