actinium no Dicionário de Francês-Inglês da Oxford-Hachette

Traduções para actinium no dicionário inglês»francês

actinium [Brit akˈtɪnɪəm, americ ækˈtɪniəm] SUBST

actinium

actinium m

Traduções para actinium no dicionário francês»inglês

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actinium

actinium

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inglês

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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