WAS BEDEUTET POLONIUM AUF ENGLISCH
Polonium
Polonium ist ein chemisches Element mit dem Symbol Po und der Ordnungszahl 84, die 1898 von Marie Curie und Pierre Curie entdeckt wurde. Ein seltenes und hochradioaktives Element ohne stabile Isotope, Polonium ist chemisch ähnlich wie Wismut und Tellur, und es kommt in Uranerzen vor. Anwendungen von Polonium sind wenige und umfassen Heizer in Raumsonden, antistatische Vorrichtungen und Quellen von Neutronen und Alphateilchen. Wegen seiner Position im Periodensystem wird Polonium manchmal als Metalloid klassifiziert. Andere Quellen sagen, dass es auf Grund seiner Eigenschaften und Verhaltensweisen "eindeutig ein Metall" ist.
Definition von polonium im Wörterbuch Englisch
Die Definition von Polonium im Wörterbuch ist ein sehr seltenes radioaktives Element, das in Spuren in Uranerzen vorkommt. Das Isotop Polonium-210 wird künstlich hergestellt und wird als leichte Energiequelle in Satelliten und zur Beseitigung statischer Elektrizität in bestimmten Industrien verwendet. Symbol: Po; Atomnummer: 84; Halbwertszeit des stabilsten Isotops, 209Po: 103 Jahre; Wertigkeit: -2, 0, 2, 4 oder 6; relative Dichte: 9,32; Schmelzpunkt: 254 ° C; Siedepunkt: 962 ° C.
10 BÜCHER, DIE MIT «POLONIUM» IM ZUSAMMENHANG STEHEN
Entdecke den Gebrauch von
polonium in der folgenden bibliographischen Auswahl. Bücher, die mit
polonium im Zusammenhang stehen und kurze Auszüge derselben, um seinen Gebrauch in der Literatur kontextbezogen darzustellen.
1
The Radiochemistry of
Polonium
REVIEW OF THOSE FEATURES OF POLONIUM CHEMISTRY OF CHIEF
INTEREST TO THE RADIOCHEMIST . 1. General Polonium was discovered by
Pierre and Marie Curie in 1898 in the course of research on the radioactivity of
uranium ...
2
Synergistic effect of
polonium-210 and cigarette smoke in rats
(8) The most satisfactory method of adding polonium-2l0 to cigarettes was by use
of sewing thread. A solution of 2^"Pb-Bi-Po in equilibrium was used which
contained four microcuries per milliliter in 0.5iV HCl. Mercerized cotton thread,
button, ...
Physical properties (Cf. Table III). Polonium is a shiny, silvery metal, with m.p. 254
C and b.p. 962°C; d= 9.20 gem '. The vapor is colorless, and contains Po,
molecules. At room temperature, it forms cubic crystals (a-Po, stable to 100 C),
and at ...
Egon Wiberg, Nils Wiberg,
2001
4
Interlaboratory intercomparison of
polonium-210 measurements
L. H. Ziegler, United States. Environmental Protection Agency. Office of Research
and Development. EXPERIMENTAL DETAILS Each participant analyzed the test
solution by the method (s) of his choice. Some of the variations in the methods ...
L. H. Ziegler, United States. Environmental Protection Agency. Office of Research and Development,
1976
5
An Evaluation of the Natural Radionuclides, Beryllium-7, ...
... a significant gamma emitter and (**) indicates the isotope is also a low gamma
emitter A pound sign (#) indicates a stable isotope Radon-222 αα 3.825 days
Polonium-218 Lead-210** αα 3.05 minutes ββ Lead-214* ββ 22 years Bismuth-
210 ...
6
Dictionary of Inorganic Compounds, Supplement 4
The term 'metal' is defined for this purpose by any element except the following:
hydrogen, carbon, nitrogen, phosphorus, arsenic, antimony, bismuth, oxygen,
sulfur, selenium, tellurium, polonium, fluorine, chlorine, bromine, iodine, astatine,
...
7
Molecules of Murder: Criminal Molecules and Classic Cases
No one now extracts polonium from uranium ores. Instead it is made in gram
quantities by bombarding bismuth with neutrons in a nuclear reactor. Bismuth
exists in only one isotopic form, bismuth-209, and when this is exposed to
neutrons it ...
8
Death of a Dissident: The Poisoning of Alexander Litvinenko ...
As Alexander Litvinenko's condition worsened, however, and he was transferred to hospital and placed under armed guard, the story took a sinister turn. On 23 November 2006, Litvinenko died, apparently from polonium-210 radiation poisoning.
Alex Goldfarb, Marina Litvinenko,
2012
9
Critical Assembly: A Technical History of Los Alamos During ...
Although entrepreneur Boris Pregel claimed to have access to residues capable
of producing 500 curies of polonium, Oppenheimer felt that the necessary
separation would be time-consuming and impractical and therefore suggested
that this ...
Lillian Hoddeson, Paul W. Henriksen, Roger A. Meade,
2004
WHOEVER POISONED HIM DID SO AT GREAT PERSONAL RISK. THE
FUTURE OF ASSASSINATION HOW POLONIUM-210 KILLED LITVINENKO The
ex-spy's. 101WAYS. TO. DIE. Russian. hits. have. always. tended. toward. the.
exotic.
10 NACHRICHTEN, IN DENEN DER BEGRIFF «POLONIUM» VORKOMMT
Erfahre, worüber man in den einheimischen und internationalen Medien spricht und wie der Begriff
polonium im Kontext der folgenden Nachrichten gebraucht wird.
Litvinenko inquiry: Key suspect 'cannot testify'
Dmitry Kovtun is one of two men British authorities believe poisoned Mr Litvinenko with radioactive polonium at a London hotel in 2006. «BBC News, Jul 15»
Litvinenko poisoning suspect must decide whether to give evidence …
Litvinenko, 43, died nearly three weeks after consuming tea laced with polonium-210 in London in November 2006. Police concluded that the fatal dose was ... «Lancashire Telegraph, Jul 15»
BBC Helps Spread Anti-Israel Conspiracy Theories About Arafat
A murder inquiry was ordered by a court in Nanterre in August 2012 after his widow Suha alleged he was poisoned with polonium-210, ... «Algemeiner, Jul 15»
Oliver Sacks: My Periodic Table
I almost certainly will not see my polonium (84th) birthday, nor would I want any polonium around, with its intense, murderous radioactivity. «New York Times, Jul 15»
Alexander Litvinenko murder inquiry: the unanswered questions
One thing is clear: two Russians, Dmitry Kovtun and Andrei Lugovoi, murdered Litvinenko by slipping radioactive polonium into his green tea. «The Guardian, Jul 15»
If Jeb Bush were a real free market warrior, this is how he would fight …
The catch is the machine produces a fine powder composed of polonium 210, which vents out of my machine and lands all over the preschool, ... «The Week Magazine, Jul 15»
Litvinenko Suspect Spoke of Poisoning him, UK Inquiry Hears
... are wanted by British police for allegedly poisoning Litvinenko in a London hotel on November 1, 2006 using tea laced with polonium-210, ... «Naharnet, Jul 15»
Yasser Arafat: French prosecutor seeks end to murder inquiry
A murder inquiry was ordered by a court in Nanterre in August 2012 after his widow Suha alleged he was poisoned with polonium-210, ... «BBC News, Jul 15»
Camera Work: Taking A Flyer
... in the class with Plutonium and Polonium. Harmless to touch but deadly ingested. Radon is a gas, the only radionuclide to be so, and is in the ... «Firedoglake, Jul 15»
A true-ish story of a Russian oligarch's rise and fall
... Roman Abramovich; the murder by polonium poisoning of his associate and former Russian secret service agent Alexander Litvinenko; and ... «Macleans.ca, Jul 15»