Glendenin, Lawrence

Promethium Pm 1946 (Oak Ridge, Tennessee) Jacob Marinsky, Lawrence Glendenin, and Charles Coryell (all American) 285... 

American scientists Jacob A. Marinsky, Lawrence E. Glendenin, and Charles D. Coryell... 

Aft er many false reports of its occurrence in nature, promethium was finally identified in 1947 in fission productsby Jacob A. Marinsky, Lawrence E. Glendenin, and Charles D. Coryell. It was named after the Greek mythological character Prometheus who stole fire from the heavens. No stable isotopes of Pm exist, its longest lived isotope being Pm-145 (half life 17.7 years), but... 

Promethium was discovered as a result of its artificial production in the atomic reactor rather than in the cyclotron. The identification was made in 1945 by three chemists at the Oak Ridge National Laboratory, Lawrence E. Glendenin,... 

In 1939, an element subsequently named francium, number 87, was discovered in Paris by Marguerite Percy, and in 1940 Segre discovered astatine, element 85. The final piece of the jigsaw puzzle, element 61, promethium, was finally obtained as a byproduct in a nuclear reaction. The discoverers on this occasion were Jacob Marinsky, Lawrence Glendenin, and Charles Coryell. ... 

Promethium 1945 Jacob Marinsky (U.S.), Lawrence Glendenin (U.S.), and Gharles Goryell (U.S.) ... 

Discovery Charles D. Coryell, Jacob A. Marinsky and Lawrence E. Glendenin discovered Pm in fission products from a nuclear reactor at Oak Ridge, Tennessee in 1945 (1943). Pm was isolated by the ion-exchange technique. It was the last discovery of a rare earth element. 

On 1 January 1948, Rolla s older brother (by 10 years), a lawyer, passed away. In the same year, a communication from the lUPAC Inorganic Chemistry Nomenclature Committee served to open an old wound [172]. W. Conard Femelius (1905-86), Chair of the Committee, and Charles CoryeU of the Massachusetts Institute of Technology consulted RoIIa regarding the tricky issue of naming element 61. This query was not an obligatory act of courtesy but a clumsy attempt to neutralize the interference of another discoverer, B. Smith Hopkins. A year before, the actual discoverers, Marinsky, Glendenin, and Coryell on one hand, and the physicists Marion L. Pool (1900-82) and Lawrence Larkin QuiU (1901-89) on the other, had submitted a series of proposals on how to name it. 

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