MOTS EN ANGLAIS EN RAPPORT AVEC «RADIOTHORIUM»
radiothorium
although
thorium
naturally
occurring
isotopes
none
these
stable
however
isotope
relatively
with
half
life
billion
years
considerably
longer
than
earth
even
radiothorium
merriam
webster
noun
ˈthȯr
origin
chemical
encyclopedia
britannica
william
ramsay
interested
radioactivity
while
working
crude
radium
preparation
purify
hahn
showed
thôr
legend
related
words
define
disintegration
product
more
meaning
definitions
infoplease
pronunciation
also
content
daily
word
quiz
supercilious
analogy
today
defined
rā′dē
t̸hôr′ē
formed
mesothorium
modern
wiktionary
edit
etymology
radio
uncountable
physics
retrieved
beispiele
wird
häufig
für
medizinische
zwecke
eingesetzt
herder
verlag
freiburg
band
spalte
eintrag
„radiothorium
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10 LIVRES EN ANGLAIS EN RAPPORT AVEC «RADIOTHORIUM»
Découvrez l'usage de
radiothorium dans la sélection bibliographique suivante. Des livres en rapport avec
radiothorium et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
trating the alpha-ray activity of specimens of mesothorium with age are not
affected by the factor for the relative activity of the gamma rays of radiothorium
and radium. Still a different relation, Meitner points out, exists between the alpha
and ...
The disintegration constant of radiothorium. B. WALTER. Physik. Z. 18, 584-
50917); J. Chem. Soc. 114, II, 5i.—Measurements of the decay of radiation,
through 5 mm. of Pb, of two preparation: of radiothorium, extending over 500
days, have ...
trating the alpha-ray activity of specimens of mesothorium with age are not
affected by the factor for the relative activity of the gamma rays of radiothorium
and radium. Still a different relation, Meitner points out, exists between the alpha
and ...
United States. Bureau of Mines, 1922
4
Journal of the American Chemical Society
ter sort contained the maximum or equilibrium amount of radiothorium, while the
former evidently did not. It seemed, therefore, as if the technical method of
preparation of thorium nitrate was more effective in separating radiothorium from
...
5
Radiations from Radioactive Substances
very active substance was 'present which he called radiothorium. This substance
formed thorium X and some days after preparation gave oil" the thorium
emanation freely. There is no doubt that radiothorium is the direct parent of
thorium X.
6
Radioactive Substances and Their Radiations
very active substance was present which he called radiothorium. This substance
formed thorium X and some days after preparation gave off the thorium
emanation freely. There is no doubt that radiothorium is the direct parent of
thorium X.
7
Radioactive Substances and Their Radiations
very active substance was present which he called radiothorium. This substance
formed thorium X and some days after preparation gave off the thorium
emanation freely. There is no doubt that radiothorium is the direct parent of
thorium X.
8
The History of Early Nuclear Physics (1896-1931)
The period of decay of the new substance was found to be 737 days, very close
to Hahn' s value for radiothorium. This was an independent confirmation of the
discovery of radiothorium (8). The radiothorium was also separated from the ...
9
Otto Hahn: Achievement and Responsibility
It was not even half a milligramme that would be tested for activity in the
electroscope. The effect 4.2 Radiothorium— The First New Element 35 was
amazing. Hahn 34 4. The First Scientific Discovery 4.2 Radiothorium-The First
New Element.
10
The Interpretation of Radium: And the Structure of the Atom
In a vessel containing a thorium or, better, a radiothorium preparation, which acts
as a constant source of the evanescent thorium emanation, the active deposit on
the walls of the vessel (or on the negative electrode, if an electric field is used), ...
2 ACTUALITÉS CONTENANT LE TERME «RADIOTHORIUM»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
radiothorium est employé dans le contexte des actualités suivantes.
« Les héritières de Marie Curie » : le portrait de Sonia Cotelle
Elle devient la spécialiste des préparations délicates de sources de polonium, de radiothorium et de mésothorium. Malgré des anémies l'obligeant à se reposer ... «Institut Curie, mai 14»
Otto Hahn bekommt Auszeichnung vor 60 Jahren: Nobelpreis für die …
Dort entdeckte Hahn ein Jahr darauf nach damaligen Kenntnissen ein neues Element, das so genannte Radiothorium. Später stellte sich heraus, dass es sich ... «RP ONLINE, nov 13»
