From Masurium to Trinacrium: The Troubled Story of Element 43

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The first man-made chemical element was that with atomic number 43. It was produced at the University of California - Berkeley (by neutron bombardment of a molybdenum plate and was chemically identified at the University of Palermo (Italy) in 1937 by Segrè and Perrier. Previous attempts to identify it in natural ore had been unsuccessful, owing to the short life of its isotopes. Notwithstanding, several claims of its discovery had appeared in the chemical literature. The history of this discovery clearly shows the dramatic improvements of chemical analytical techniques and criteria in the first half of 20th century. In 1949 its discoverers proposed to call it technetium, which means produced by technology.
Lingua originaleEnglish
pagine (da-a)221-227
Numero di pagine7
RivistaJournal of Chemical Education
Stato di pubblicazionePublished - 2005

All Science Journal Classification (ASJC) codes

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  • ???subjectarea.asjc.3300.3304???


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