neptunium dans le dictionnaire italien Oxford-Paravia

Traductions de neptunium dans le dictionnaire anglais»italien

neptunium [GB nɛpˈtjuːnɪəm, Am nɛpˈt(j)uniəm] SUBST CHIM

neptunium

nettunio m

Traductions de neptunium dans le dictionnaire italien»anglais

Autres traductions et expressions typiques avec les termes de votre recherche

nettunio

neptunium

Exemples monolingues (non-vérifiés par l'équipe de rédaction)

anglais

A radioactive actinide metal, neptunium is the first transuranic element.

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Ions of neptunium are prone to hydrolysis and formation of coordination compounds.

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This amount declines slowly as the americium decays into neptunium-237, a different transuranic element with a much longer half-life (about 2.14 million years).

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Neptunium dioxide has also been show to contribute to increased decay rates of radioactive metals, an application which is currently being explored.

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With its half-life of 432.2 years, the americium in a smoke detector includes about 3% neptunium after 19 years, and about 5% after 32 years.

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O to various temperature thresholds and further heating will also cause these compounds to exhibit different neptunium allotropes.

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By weight, neptunium-237 discharges are about 5% as great as plutonium discharges and about 0.05% of spent nuclear fuel discharges.

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Examples include gallium, ytterbium, bismuth, mercury and neptunium.

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The element 93 was synthesised in 1940 and named neptunium.

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The relative order of the middle two neptunium ions depends on the ligands and solvents used.

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