• Samarium-147 (147Sm or Sm-147) is an isotope of samarium, making up 15% of natural samarium. It is an extremely long-lived radioisotope, with a half-life...
    4 KB (387 words) - 11:44, 25 July 2025
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    radionuclide Samarium-147 (α) – long-lived primordial radionuclide Samarium-148 (α) – long-lived primordial radionuclide Samarium-149 (α)* Samarium-150 (α)...
    28 KB (3,315 words) - 17:19, 25 July 2025
  • Naturally occurring samarium (62Sm) is composed of five stable isotopes, 144Sm, 149Sm, 150Sm, 152Sm and 154Sm, and two extremely long-lived radioisotopes...
    26 KB (1,654 words) - 08:51, 27 July 2025
  • long-lived samarium isotope (147 Sm) to the stable radiogenic neodymium isotope (143 Nd). Neodymium isotope ratios together with samarium–neodymium ratios...
    13 KB (1,866 words) - 12:52, 29 March 2025
  • only about 10 years (e.g., tritium) to over 100 billion years (e.g., samarium-147). For most radioactive nuclides, the half-life depends solely on nuclear...
    48 KB (5,825 words) - 18:08, 26 July 2025
  • properties intermediate between those of the known elements neodymium (60) and samarium (62); this was confirmed in 1914 by Henry Moseley, who, having measured...
    42 KB (4,973 words) - 21:40, 27 July 2025
  • numbers up to 208 with the exceptions of 147 and 151, which are represented by the very long-lived samarium-147 and europium-151. (Bismuth-209 was found...
    13 KB (1,346 words) - 14:41, 10 April 2025
  • seconds lutetium-176 37.64 1.188 rhenium-187 41.22 1.301 rubidium-87 49.72 1.569 lanthanum-138 102.1 3.22 samarium-147 106.1 3.35 platinum-190 483 15.2...
    71 KB (304 words) - 03:31, 26 July 2025
  • radioactive with a half-life of 2 years Many of the fission products with mass 147 or greater such as 147Pm, 149Sm, 151Sm, and 155Eu have significant cross...
    42 KB (1,469 words) - 14:14, 8 July 2025
  • isotope of an element long considered stable. The other 10, platinum-190, samarium-147, lanthanum-138, rubidium-87, rhenium-187, lutetium-176, thorium-232,...
    201 KB (4,138 words) - 04:31, 2 August 2025
  • or samarium isotope which has a higher binding energy per nucleon. The other element for which this happens is technetium (Z = 43). Promethium-147 has...
    20 KB (910 words) - 20:47, 6 June 2025
  • but 143Nd is a daughter of 147Sm, a radioactive isotope in the ocean. Samarium-147 has higher concentrations in mantle rocks vs crust rocks, so areas that...
    21 KB (2,979 words) - 00:40, 9 August 2024
  • Samarium(III) bromide is a crystalline compound of one samarium and three bromine atoms with the chemical formula of SmBr3. The compound has a crystal...
    5 KB (253 words) - 06:54, 20 July 2025
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    Samarium(II) bromide is an inorganic compound with the chemical formula SmBr 2. It is a brown solid that is insoluble in most solvents but degrades readily...
    8 KB (546 words) - 11:25, 3 January 2024
  • Environmental effects". www.lenntech.com. Retrieved 2024-05-23. MMTA. "Samarium". MMTA. Retrieved 2024-05-23. "Gadolinium (Gd)". RWMM. Retrieved 2024-05-23...
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    neodymium, samarium, osmium, and uranium each have two primordial radioisotopes (113 Cd, 116 Cd; 128 Te, 130 Te; 124 Xe, 136 Xe; 144 Nd, 150 Nd; 147 Sm, 148...
    25 KB (2,184 words) - 23:12, 19 June 2025
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    the probability of its creation in nucleosynthesis (as in the case of samarium; radioactive 147Sm and 148Sm are much more abundant than stable 144Sm)...
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    nuclei which underwent fission). Samarium-149 is the second most important neutron poison in nuclear reactor physics. Samarium-151, produced at lower yields...
    35 KB (4,515 words) - 14:26, 8 July 2025
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    barium-138, lanthanum-139, cerium-140, praseodymium-141, neodymium-142, and samarium-144, as well as the radioactive primordial nuclide xenon-136, which decays...
    5 KB (601 words) - 04:24, 28 July 2025
  • a 16th) occur in minerals, such as monazite and samarskite (for which samarium is named). These minerals can also contain group 3 elements, and actinides...
    109 KB (10,480 words) - 21:34, 30 July 2025
  • Thumbnail for Harold Agnew
    Thesis The Beta-spectra of Cesium-137, Yttrium-91, Chlorine-147, Ruthenium-106, Samarium-151, Phosphorus-32, and Thulium-170 (1949) Doctoral advisor Enrico...
    27 KB (2,903 words) - 16:47, 24 May 2025
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    of air". Philosophical Transactions of the Royal Society of London. 62: 147–256. doi:10.1098/rstl.1772.0021. S2CID 186210131. ; see p. 225. Archived...
    107 KB (12,510 words) - 17:25, 19 July 2025
  • batch of ammunition has its own peculiar 204Pb/206Pb vs 207Pb/208Pb ratio. Samarium–neodymium is an isotope system which can be utilised to provide a date...
    21 KB (2,412 words) - 16:47, 7 July 2025
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    extensive avionics carried. Each F-35 contains about 50 pounds (23 kg) of samarium magnets. While lacking the kinematic performance of the larger twin-engine...
    320 KB (27,684 words) - 15:17, 2 August 2025
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    the founding of the city. Hadrian, in AD 121, and Antoninus Pius, in AD 147 and AD 148, held similar celebrations respectively. In AD 248, Philip the...
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    Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium...
    81 KB (8,971 words) - 18:11, 23 July 2025
  • is beta decay. The primary decay products before 153Eu are isotopes of samarium and the primary products after are isotopes of gadolinium. mEu – Excited...
    22 KB (1,127 words) - 02:48, 1 August 2025
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    L. P. (2006). "Lead poisoning in ancient Rome". Acta Theologica. 26 (2): 147–64 (149–51). doi:10.4314/actat.v26i2.52570. Rich, V. (1994). The International...
    179 KB (19,075 words) - 20:17, 29 July 2025
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    (2006). "The physics of core collapse supernovae". Nature Physics. 1 (3): 147–54. arXiv:astro-ph/0601261. Bibcode:2005NatPh...1..147W. doi:10.1038/nphys172...
    150 KB (16,945 words) - 13:04, 14 July 2025
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    elemental abundances, one can look at the decay of rubidium to strontium, samarium to neodymium, uranium to lead, argon-40 to argon-39, or rhenium to osmium...
    140 KB (15,124 words) - 02:48, 2 August 2025