berkelium 在《牛津英西词典》中的词汇

词条berkelium在西班牙语»英语中的译文

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英语
In experiments during 1949-1950, they produced and identified elements 97 (berkelium) and 98 (californium).
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The coordination of the berkelium atom in its trivalent fluoride and chloride is tricapped trigonal prismatic, with a coordination number of 9.
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The berkelium was subsequently cooled in 90 days and chemically purified in another 90 days.
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The production resulted in 22 milligrams of berkelium, enough to perform the experiment.
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There is no practical application of berkelium outside of scientific research which is mostly directed at the synthesis of heavier transuranic elements and transactinides.
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The isotope which is the easiest to synthesize is berkelium-249.
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A similar behavior is observed for the lanthanide analogue of berkelium, terbium.
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Bk, again has a relatively short half-life of 3.212 hours and thus, does not yield any heavier berkelium isotopes.
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The production of the second-important isotope berkelium-247 involves the irradiation of the rare isotope curium-244 with high-energy alpha particles.
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Most available berkelium toxicity data originate from research on animals.
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