"The Transuranium Elements Early History." Les Prix Nobel en 1951. SIGNED BY EDWIN M. McMILLAN.

pp. 165-173. Original wrappers. Near Fine. First Edition. SIGNED BY EDWIN M. McMILLAN (on front wrapper). Offprint of Edwin M. McMillan's Nobel Lecture, December 12, 1951. The Nobel Prize in Chemistry 1951 was awarded jointly to Edwin Mattison McMillan and Glenn Theodore Seaborg "for their discoveries in the chemistry of the transuranium elements." "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. Edwin McMillan also contributed to the mapping of additional heavy elements and isotopes" (Nobel Prize website).