单词 | transuranic element |
释义 | BETA Examples oftransuranic elementDictionary> Examples oftransuranic element transuranic elementisn’t in the Cambridge Dictionary yet. You can help! Add a definition A radioactive actinide metal, neptunium is the firsttransuranicelement. From Wikipedia ![]() It is the seventhtransuranicelement, and an actinide. From Wikipedia ![]() It is the antepenultimate actinide and the ninthtransuranicelement. From Wikipedia ![]() This amount declines slowly as the americium decays into neptunium-237, a differenttransuranicelement with a much longer half-life (about 2.14 million years). From Wikipedia ![]() In chemistry, atransuranicelementreceives a permanent name and symbol only after its synthesis has been confirmed. From Wikipedia ![]() It was the sixthtransuranicelementto be synthesized. From Wikipedia ![]() It is a metallic radioactivetransuranicelementin the actinide series, usually synthesized by bombarding einsteinium with alpha particles. From Wikipedia ![]() A metallic radioactivetransuranicelementin the actinide series, it is the first element that currently can not be produced in macroscopic quantities through neutron bombardment of lighter elements. From Wikipedia ![]() He independently discovered thetransuranicelementneptunium. From Wikipedia ![]() Of those, 11 are the transuranic elements, the ones which are artificially made by man. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 The most troublesome transuranic elements in spent fuel are neptunium-237 (half-life two million years) and plutonium-239 (half-life 24,000 years). From Wikipedia ![]() Spent fuel includes fission products, which generally must be treated as waste, as well as uranium, plutonium, and other transuranic elements. From Wikipedia ![]() This could either be viewed as good (generate more fuel) or can be viewed as bad (generation of more "radiotoxic" transuranic elements). From Wikipedia ![]() There is no practical application of berkelium outside of scientific research which is mostly directed at the synthesis of heavier transuranic elements and transactinides. From Wikipedia ![]() Berkelium-249 is a common target nuclide to prepare still heavier transuranic elements and transactinides, such as lawrencium, rutherfordium and bohrium. From Wikipedia ![]() Sometimes, eka- is still used to refer to some of the transuranic elements, for example "eka-radon" for ununoctium and "eka-actinium" (or "dvi-lanthanum") for untriennium. From Wikipedia ![]() A supercollider orbits the entire equator of this new star, and is used to produce stable, artificial transuranic elements. From Wikipedia ![]() The chemical separation of the transuranic elements and the fuel manufacturing, as well as the structure materials, are important issues. From Wikipedia ![]() These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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