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Ausenium

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This is an old revision of this page, as edited by Jähmefyysikko (talk | contribs) at 03:31, 17 November 2023 (Not according to Fermi's Nobel lecture which is probably the most reliable source here. Undid revision 1185456006 by Piotr Gasiorowski (talk)). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Ausenium (atomic symbol Ao) was the name assigned to the element with atomic number 93, now known as neptunium. It was named after a Greek name of Italy, Ausonia.[1]

The same team assigned the name hesperium to element 94, after Hesperia, a poetic name of Italy.[2] (Element 94 was later named plutonium).

The discovery of the element, now discredited, was made by Enrico Fermi and a team of scientists at the University of Rome in 1934. In the same year Ida Noddack had already presented alternative explanations for the experimental results of Fermi.[3] Following the discovery of nuclear fission in 1938, it was realized that Fermi's discovery was actually a mixture of barium, krypton, and other elements. The actual element was discovered several years later, and assigned the name neptunium.[2]

Fascist authorities wanted one of the elements to be named littorio after the Roman lictores who carried the fasces, a symbol appropriated by Fascism.[2]

References

  1. ^ Fermi, E. (1934). "Possible Production of Elements of Atomic Number Higher than 92". Nature. 133 (3372): 898–899. Bibcode:1934Natur.133..898F. doi:10.1038/133898a0.
  2. ^ a b c Sime, Ruth Lewin (2000). "The Search for Transuranium Elements and the Discovery of Nuclear Fission". Physics in Perspective. 2 (1): 48–62. Bibcode:2000PhP.....2...48S. doi:10.1007/s000160050036. S2CID 117751813.
  3. ^ Noddack, Ida (1934). "Über das Element 93". Angewandte Chemie. 47 (37): 653–655. Bibcode:1934AngCh..47..653N. doi:10.1002/ange.19340473707.