238,02891 а. е. м. |
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. Uranium-238 · Uranium-235 · Depleted uranium · Enriched uranium |
The atomic weight and uncertainty of uranium were changed to 238.028 91(3) in 1999 on the basis of new calibrated mass-spectrometric measurements. That ... |
A radioactive element with the atomic number 92 and, as found in natural ores, an atomic weight of approximately 238. |
Around 99.284% of natural uranium's mass is uranium-238, which has a half-life of 1.41×1017 seconds (4.468×109 years, or 4.468 billion years). ... Due to its ... |
Atomic Data for Uranium (U) · Atomic Number = 92 · Atomic Weight = 238.0289 · Reference E95 ... |
Element Uranium (U), Group 20, Atomic Number 92, f-block, Mass 238.029 ... Depleted uranium is uranium that has much less uranium-235 than natural uranium. |
Isotope · Relative Atomic Mass · Isotopic · Composition · Standard Atomic Weight · Notes. 92, U, 233, 233.039 6355(29). 234, 234.040 9523(19), 0.000 054(5) ... |
Uranium is a radioactive element with atomic symbol U, atomic number 92, and atomic weight 238. NCI Thesaurus (NCIt). View More... |
The atomic mass of uranium-238 has been determined to be $238.050\phantom{\rule{0.16em}{0ex}}787\phantom{\rule{0.16em}{0ex}}618(15)$ u, improving the ... |
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