• stable isotopes. The first isotope to be synthesized was 241Am in 1944. The artificial element decays by ejecting alpha particles. Americium has an atomic...
    18 KB (1,336 words) - 15:18, 29 October 2024
  • Thumbnail for Americium-241
    Americium-241 (241Am, Am-241) is an isotope of americium. Like all isotopes of americium, it is radioactive, with a half-life of 432.2 years. 241Am is...
    33 KB (3,818 words) - 18:26, 30 September 2024
  • Thumbnail for Americium
    synthesis routines yield a mixture of different actinide isotopes in oxide forms, from which isotopes of americium can be separated. In a typical procedure...
    77 KB (9,332 words) - 09:20, 16 November 2024
  • 244Pu are isotopes of uranium and neptunium (not considering fission products), and the primary decay products after are isotopes of americium. mPu – Excited...
    29 KB (2,734 words) - 23:03, 13 November 2024
  • Thumbnail for Weapons-grade nuclear material
    uranium-233 (the fissile material at the heart of the thorium fuel cycle). Neptunium-237 and some isotopes of americium might be usable, but it is not clear that...
    14 KB (2,124 words) - 13:01, 15 November 2024
  • Actinide (category Pages that use a deprecated format of the chem tags)
    lifetime than the americium isotopes. These isotopes emit almost no γ-radiation, but undergo spontaneous fission with the associated emission of neutrons. More...
    123 KB (11,580 words) - 14:30, 20 November 2024
  • Thumbnail for Nuclear weapon
    Less commonly used has been uranium-233. Neptunium-237 and some isotopes of americium may be usable for nuclear explosives as well, but it is not clear...
    116 KB (13,252 words) - 00:49, 10 November 2024
  • This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days...
    71 KB (304 words) - 16:29, 21 November 2024
  • in the decay chain of the primordial isotopes thorium-232, uranium-238, and uranium-235. Examples include the natural isotopes of polonium and radium...
    31 KB (2,660 words) - 10:05, 14 November 2024
  • Curium (redirect from History of curium)
    separation was done by ion exchange to yield a certain isotope of curium. The separation of curium and americium was so painstaking that the Berkeley group initially...
    67 KB (7,860 words) - 07:44, 1 November 2024
  • Thumbnail for Americium(III) oxide
    Americium(III) oxide or americium sesquioxide is an oxide of the element americium. It has the empirical formula Am2O3. Since all isotopes of americium...
    3 KB (224 words) - 05:55, 15 November 2024
  • Thumbnail for Actinides in the environment
    of chemical elements with atomic numbers ranging from 89 to 102, including notable elements such as uranium and plutonium. The nuclides (or isotopes)...
    20 KB (2,305 words) - 07:17, 12 November 2024
  • is formed by the neutron activation of the commonly found stable isotope. Americium-241 has been used as a source of low energy gamma photons, it has been...
    7 KB (795 words) - 09:00, 24 October 2024
  • Thumbnail for List of elements by stability of isotopes
    11 have 5 stable isotopes, 9 have 4 stable isotopes, 5 have 3 stable isotopes, 16 have 2 stable isotopes, and 26 have 1 stable isotope. Additionally, about...
    37 KB (2,204 words) - 17:11, 25 March 2024
  • Thumbnail for Nuclear thermal rocket
    1987, Ronen & Leibson published a study on applications of 242mAm (one of the isotopes of americium) as nuclear fuel to space nuclear reactors, noting its...
    58 KB (7,131 words) - 21:55, 22 November 2024
  • Thumbnail for Plutonium
    emission, forming americium isotopes (95 protons). Plutonium-241 is the parent isotope of the neptunium series, decaying to americium-241 via beta emission...
    139 KB (14,981 words) - 08:15, 9 November 2024
  • fission of uranium isotopes such as uranium-235, and the formation of new, heavier isotopes due to neutron capture, primarily by uranium-238. Most of the...
    20 KB (2,542 words) - 19:37, 19 October 2024
  • Earth and they are synthetic. Of the elements with atomic numbers 1 to 92, most can be found in nature, having stable isotopes (such as oxygen) or very long-lived...
    17 KB (2,031 words) - 23:06, 9 October 2024
  • Thumbnail for Neutron source
    isotopes of beryllium, carbon, or oxygen. Thus, a neutron source can be fabricated by mixing an alpha-emitter such as radium, polonium, or americium with...
    9 KB (1,134 words) - 14:19, 12 October 2024
  • consists of two stable isotopes: 181Ta (99.988%) and 180m Ta (0.012%). There are also 35 known artificial radioisotopes, the longest-lived of which are...
    27 KB (1,506 words) - 22:22, 12 October 2024
  • Thumbnail for Decay chain
    Decay chain (redirect from Parent isotope)
    often after a series of decays, a stable isotope is reached: there are 251 stable isotopes in the universe. In stable isotopes, light elements typically...
    46 KB (3,963 words) - 13:37, 20 November 2024
  • expected to fall within the range of the island of stability, potentially conferring additional stability on some isotopes, especially 306Ubb which is expected...
    37 KB (7,066 words) - 16:08, 31 October 2024
  • Thumbnail for Berkelium
    element discovered after neptunium, plutonium, curium and americium. The major isotope of berkelium, 249Bk, is synthesized in minute quantities in dedicated...
    61 KB (7,479 words) - 06:07, 16 November 2024
  • Plutonium-241 (category Isotopes of plutonium)
    (241 Pu or Pu-241) is an isotope of plutonium formed when plutonium-240 captures a neutron. Like some other plutonium isotopes (especially 239Pu), 241Pu...
    5 KB (726 words) - 22:02, 21 October 2024
  • given. Like all trace or artificial elements, it has no stable isotopes. The first isotope to be synthesized and identified was 239Np in 1940, produced...
    26 KB (2,461 words) - 05:01, 19 October 2024
  • underway regarding alloys of neptunium with uranium, americium, plutonium, zirconium, and iron, so as to recycle long-lived waste isotopes such as neptunium-237...
    113 KB (13,707 words) - 19:00, 28 October 2024
  • Thumbnail for Radioisotope thermoelectric generator
    strontium-90, and most recently americium-241 are the most often cited candidate isotopes, but 43 more isotopes out of approximately 1,300 were considered...
    65 KB (7,108 words) - 04:04, 13 November 2024
  • Thumbnail for Chemical symbol
    a list can instead be found in Template:Navbox element isotopes. The symbols for isotopes of hydrogen, deuterium (D) and tritium (T), are still in use...
    64 KB (2,126 words) - 12:28, 14 October 2024
  • synthesis of ununennium, as isotopes with half-lives below one microsecond would decay before reaching the detector, and the heavier isotopes cannot be...
    47 KB (8,368 words) - 06:59, 15 November 2024
  • isotope. Except for the isotopes of hydrogen (which differ greatly from each other in relative mass—enough to cause chemical effects), the isotopes of...
    76 KB (10,055 words) - 09:18, 14 November 2024