actinium in the Oxford-Hachette French Dictionary

Translations for actinium in the English»French Dictionary (Go to French»English)

Translations for actinium in the French»English Dictionary (Go to English»French)

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actinium
American English

Monolingual examples (not verified by PONS Editors)

English
Actinium-225 is less available than actinium-228, but is more promising in radiotracer applications.
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The actinide series comprises the elements from actinium to lawrencium.
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Polonium, radium and radon were observed before actinium, but they were not isolated until 1902.
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Owing to its scarcity, high price and radioactivity, actinium has no significant industrial use.
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Ac was that intravenous injection of simple actinium complexes resulted in their accumulation in the bones and liver for a period of tens of years.
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Actinium-227 (half-life 21.8 years) in turn decays via thorium-227 (half-life 18.7 days) to radium-223.
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All actinides are radioactive, paramagnetic, and, with the exception of actinium, have several crystalline phases: plutonium has seven, and uranium, neptunium and californium three.
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When actinium trichloride is administered intravenously to rats, about 33% of actinium is deposited into the bones and 50% into the liver.
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Polonium-208 and actinium-227 were also considered as alpha sources.
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Actinium has similar chemical properties as lanthanum and other lanthanides, and therefore these elements are difficult to separate when extracting from uranium ores.
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