Термины атомной энергетики. - Концерн Росэнергоатом, 2010
Uranium-238 — Infobox isotope background =#fc6 text color = image caption = 10 gram sample alternate names = mass number =238 symbol =U num neutrons =146 num protons =92 abundance = 99.284% halflife = 4.46 billion years error halflife = decay product = Thorium … Wikipedia
Uranium 238 — L uranium 238, noté 238U, est l isotope de l uranium dont le nombre de masse est égal à 238 : son noyau atomique compte 92 protons et 146 neutrons avec un spin 0+ pour une masse atomique de 238,0507826 g/mol. Il est caractérisé par un excès… … Wikipédia en Français
uranium 238 — noun the commonest isotope of uranium; it is not fissionable but when irradiated with neutrons it produces fissionable plutonium 239 • Hypernyms: ↑uranium, ↑U, ↑atomic number 92 * * * noun : an isotope of uranium of mass number 238 that is the… … Useful english dictionary
uranium-234-uranium–238 dating — Method of age determination that makes use of the radioactive decay of uranium 238 to uranium 234; the method can be used for dating sediments from either a marine or a playa lake environment. Because this method is useful for the period с… … Universalium
uranium-234–uranium-238 dating — method of age determination that makes use of the radioactive decay of uranium 238 to uranium 234; the method can be used for dating of sediments from either a marine or a playa lake environment. Because this method is useful for the period … Universalium
uranium 238 — Chem. the radioactive uranium isotope having a mass number 238, comprising 99.28 percent of natural uranium: used chiefly in nuclear reactors as a source of the fissionable isotope plutonium 239. Also called U 238, U 238. [1940 45] * * * … Universalium
uranium 238 — noun Date: 1942 an isotope of uranium of mass number 238 that is the most stable uranium isotope, that constitutes over 99 percent of natural uranium, that is not fissile but can be used to produce a fissile isotope of plutonium, and that has a… … New Collegiate Dictionary
uranium 238 — n. chem. the radioactive uranium isotope having a mass number of 238, used chiefly in nuclear reactors as a source of the fissionable isotope plutonium 239 • Etymology: 1940–45 … From formal English to slang
Uranium — (pronEng|jʊˈreɪniəm) is a silvery gray metallic chemical element in the actinide series of the periodic table that has the symbol U and atomic number 92. It has 92 protons and 92 electrons, 6 of them valence electrons. It can have between 141 and … Wikipedia
Uranium — Protactinium ← Uranium → Neptunium Nd … Wikipédia en Français
