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.

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 ... Abstract · Article Text · ACKNOWLEDGMENTS

Based on the given data and approximation, the atomic mass of naturally occurring uranium is most likely (d) 238.03 amu.

The standard atomic weight of natural uranium is 238.02891(3). Natural uranium consists of three main isotopes, 238U (99.2739–99.2752% natural abundance), 235U ... List of isotopes · Uranium-234 · Uranium-235

A radioactive element with the atomic number 92 and, as found in natural ores, an atomic weight of approximately 238.

92-uranium-238 · Atomic Mass: 238.0507826 +- 0.0000021 amu · Excess Mass: 47303.664 +- 1.980 keV · Binding Energy: 1801694.651 +- 2.006 keV · Beta Decay Energy: B- ...

uranium-239. Formula. U. SMILES. [239U]. Molecular Weight. 239.05429. CID. 9964722. Name. uranium-238. Formula. U. SMILES. [238U]. Molecular Weight. 238.05079.

The mass number of the uranium-238 atom is 238. Mass numbers are listed after the element name when identifying isotopes to distinguish the different atomic ...

28 авг. 2024 г. · Uran I Symbol: 238U or 23892U Mass number A: 238 (= number of nucleons) Atomic number Z: 92 (= number of protons) Neutrons N: 146 Isotopic mass: ...