Examples of using Technetium in English and their translations into Vietnamese
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Colloquial
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Ecclesiastic
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Computer
Because no isotope of technetium has a half-life longer than 4.2 million years(technetium-98), the 1952 detection of technetium in red giants,
27 mg of 99Tc, giving technetium a fission product yield of 6.1%.[30] Other fissile isotopes also produce similar yields of technetium,[10] e.g. 4.9% from uranium-233 or 6.21% from plutonium-239.
Hepatocholecystography(a technetium radioisotope study demonstrates the rate and extent of capture of the injected radioisotope by the liver from the blood, its excretion into the bile, sequential flow of the gallbladder,
In 1999 David Curtis(see above) estimated that a kilogram of uranium contains 1 nanogram(1×10-9 g) of technetium.[1] Extraterrestrial technetium was found in some red giant stars(S-, M-, and N-types) that contain an absorption line in their spectrum indicating the presence of this element.
a previously unknown element, dubbed technetium, and was the first artificially synthesized chemical element which does not occur in nature.
Our calculation of the amount of element 43 required to produce their spectrum is quite similar to the direct measurements of natural technetium abundance in uranium ore published in 1999 by Dave Curtis
The normal technetium cow is an alumina column which contains molybdenum, as aluminium has a small neutron cross sectional it would be likely that an alumina column bearing inactive 98Mo could be irradated with neutrons to make the radioactive column for the technetium cow.
Technetium is one of the two elements in the first 82 that have no stable isotopes(in fact,
Technetium is one of the two elements in the first 82 that have no stable isotopes(in fact,
ruthenium is a goal, an extremely pure technetium target is needed;
Pure metallic single-crystal technetium becomes a type II superconductor at 7.46 K; irregular crystals and trace impurities raise this temperature to 11.2 K for 99.9% pure technetium powder.[10] Below this temperature technetium has a very high magnetic penetration depth,
Under oxidizing conditions technetium(VII) will exist as the pertechnetate ion,
Common oxidation states of technetium include 0, +2, +4, +5, +6 and +7.[21] When in powder form, technetium will burn in oxygen.[22] It dissolves in aqua regia,
And do a technetium sestamibi.
Technetium is therefore extremely rare on Earth.
Technetium will burn in oxygen when in powder form.
When in powder form, technetium will burn in oxygen.
The element he called eka-manganese is now called technetium.
The metal form of technetium slowly tarnishes in moist air.
Like rhenium and palladium, technetium can serve as a catalyst.