Walter Noddack

Walter Noddack

name = Walter Noddack

image_width =
caption = Walter Noddack
birth_date = birth date|1893|8|17
birth_place = Berlin, Germany
residence =
nationality = Germans
death_date = death date and age|1960|12|7|1893|8|17
death_place =
field =
work_institution = Technical University of Berlin
alma_mater = Technical University of Berlin
doctoral_advisor =
doctoral_students =
known_for = discovery of Rhenium
prizes =
religion =
footnotes =
Walter Noddack (* 17 August 1893 in Berlin, 7 December 1960 in Berlin) was a German chemist. He, Ida Tacke (who later married Noddack), and Otto Berg reported the discovery of element 43 in 1925 and named it masurium (after Masuria in Eastern Prussia).inote | "Elentymolgy and Elements Multidict", "Technetium" The group bombarded columbite with a beam of electrons and deduced element 43 was present by examining X-ray diffraction spectrograms. The wavelength of the X-rays produced is related to the atomic number by a formula derived by Henry Moseley. The team claimed to detect a faint X-ray signal at a wavelength produced by element 43. Contemporary experimenters could not replicate the discovery, and in fact it was dismissed as an error for many years.inote|

It was not until 1998 that this dismissal began to be questioned. John T. Armstrong of the National Institute of Standards and Technology ran computer simulations of the experiments and obtained results very close to those reported by the 1925 team; the claim was further supported by work published by David Curtis of the Los Alamos National Laboratory measuring the (tiny) natural occurrence of technetium.inote | TECHNETIUM, JOHN T. ARMSTRONG, NATIONAL he also loveed dicks in his ass because he was christan INSTITUTE OF STANDARDS & TECHNOLOGY Debate still exists as to whether the 1925 team actually did discover element 43.

Academic career

Noddack became professor for physical chemistry in 1935 at the University of Freiburg and 1941 at the University of Straßburg. After World War II he changed to the University of Bamberg and in 1956 he became direk­tor dof the newly founded Research Institute for geochemistry there.


cite journal
title = Obituary: Walter Noddack. 1893-1960 (Zu seinem 70. Geburtstag am 17. August 1963)
author = Otto Bayer, Ludwig Holleck, John Eggert, Heinrich Remy
journal = Chemische Berichte
volume = 96
issue = 8
pages = XXVIIA–LIA
year = 1963
url =
doi = 10.1002/cber.19630960844

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  • Walter Noddack — (* 17. August 1893 in Berlin; † 7. Dezember 1960 in Berlin) war ein deutscher Chemiker. Gemeinsam mit seiner späteren Frau Ida Tacke und Otto Berg entdeckte er 1925 das Element Rhenium. Die gleichzeitige Entdeckung des Elements mit der… …   Deutsch Wikipedia

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  • Noddack , Ida Eva Tacke — (1896–1979) German chemist Noddack, who was born at Lackhausen in Germany, was educated at the Technical University, Berlin, where she obtained her doctorate in 1921. After her marriage to the chemist Walter Noddack she worked at the same… …   Scientists

  • Noddack , Walter — (1893–1960) German chemist Noddack was born in Berlin and educated at the university there, obtaining his doctorate in 1920. He worked first at the Physikalische Technische Reichsanstadt, the German national physical laboratory, until 1935, and… …   Scientists

  • Noddack — Nọddack,   Walter Karl Friedrich, Physikochemiker, * Berlin 17. 8. 1893, ✝ Bamberg 7. 12. 1960; Professor in Freiburg im Breisgau (1935 41), Straßburg und Bamberg (seit 1946). Noddack arbeitete über Kohlendioxidassimilation und photochemische… …   Universal-Lexikon

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