Sutton, G.A., Napier, S.T., John, M. and Taylor, A. (1993) Uranium-238 decay chain data. Science of the Total Environment 130-131(0), 393-401.Sutton, G. A. et al. Uranium-238 Decay chain data. The science of total environment, v. 130-131, p. 393-401, 1993....
Uranium Compound In subject area: Earth and Planetary Sciences Inhaled uranium compounds are adsorbed in the respiratory tract via transfer across cell membranes. From: Treatise on Geochemistry (Second Edition), 2014 About this pageAdd to MendeleySet alert On this page On this page...
Uranium-238 is the parent and uranium-234 one of the daughters in the radioactive uranium decay series; uranium-235 is the parent of the actinium decay series. See also actinoid element. The element uranium became the subject of intense study and broad interest after German chemists Otto Hahn...
Uranium-233 undergoes alpha decay with a half-life of 160,000 years and, like 235U, is fissile.[10] It can be bred from thorium-232 via neutron bombardment, usually in a nuclear reactor; this process is known as the thorium fuel cycle. Owing to the fissility of 233U and the greater ...
The constant rates of decay in these series makes comparison of the ratios of parent to daughter elements useful in radiometric dating. Uranium-234 decays to lead-206 through a series of short-lived intermediaries. Uranium-233 is made from thorium-232 by neutron bombardment;[8] its decay series...
Uranium-238 has a half-life of 4.468 billion years over which time it decays into stablelead-206. This process can be used to date ancient rocks by comparing the ratio of the isotopelead-206, the last isotope in the uranium decay series, to the level of uranium-238 inthe sample of rock...
238.0289, occurring mainly in pitchblende and notable for its two isotopes: 238U and 235U (99.2745% and 0.720%, respectively, the rest being made up by 234U), 235U being the first substance ever shown capable of supporting a self-sustaining chain reaction. [G. myth. character, Uranus] ...
The origin of uranium, the highest member of the naturally occurring elements — except perhaps for traces of neptunium or plutonium — is not clearly understood, although it has been thought that uranium might be a decay product of elements of higher atomic weight, which may have once been ...
234 has a half-life of 245,500 years, but it occurs only indirectly from the decay of U-238. The strangest isotope of uranium is Uranium-214,created in 2021 at the Heavy Ion Research Facility in Lanzhou, China. Uranium-214 can only be made in artificial circumstances – researchers hit ...
(0.7204%; T1/2= 7.04 × 108y),234U (0.0057%; T1/2= 2.45 × 105y) (Gschneidner, 1994;Skwarzec, 1997). The isotopes234U and238U occur in the natural radioactive decay chain and238U is the parent nuclide of the uranium-radium series, while235U starts the other natural decay chain,...