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Examples of the the word, isotope , in a Sentence Context

The word ( isotope ), is the 11778 most frequently used in English word vocabulary

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  1. Protons and neutrons having roughly equal mass. Each element has at least one, isotope ,with unstable nuclei that can undergo radioactive decay. This can result in a
  2. Member of the actinium series decay chain, which begins with the parent, isotope ,235U (or 239Pu) and ends with the stable lead isotope 207Pb. Another actinium
  3. Of californium. Prolonged neutron irradiation also produces a long-lived, isotope ,254Es (to = 275.5 days). Among the 15 known isotope s of mendelevium (mass
  4. Isotopes, whose mass numbers range from 21 to 42; however, only 27Al (stable, isotope ,) and 26Al (radioactive isotope ,t1/2 = 7.2×105 y) occur naturally. 27Al has
  5. From the Greek word αστατος States, meaning " unstable," to imply the created, isotope ,'s instability towards radioactive decay; These processes are called decay
  6. Work in radioactivity. Bombarding curium-242 with particles resulted in an, isotope ,of californium 245Cf (1950),and a similar procedure yielded in 1949
  7. From 21 to 42; however, only 27Al (stable isotope ) and 26Al (radioactive, isotope , t1/2 = 7.2×105 y) occur naturally. 27Al has a natural abundance above 99.9 %.
  8. Sophisticated assembly designs. Plutonium-238 is potentially more efficient, isotope ,for nuclear reactors, as it has smaller critical mass than uranium-235,but
  9. Argon-36 is by far the most common argon isotope , being the preferred argon, isotope ,produced by stellar nucleosynthesis in supernovas. The name" argon" is
  10. Multiple isotope s, the mass spectrometer can determine the proportion of each, isotope ,in the sample by measuring the intensity of the different beams of ions.
  11. Then corrected to 432.2 years.: \math rm: The times are half-lives The second, isotope ,242Am was produced upon neutron bombardment of the already-created 241Am. Upon
  12. Its application is limited by the high price (about 1000 USD/g). This, isotope ,has been used in thermopiles and water distillation systems of some space
  13. Mass. Americium-242 is a short-lived isotope with a half-life of 16.02 h. This, isotope ,is preferred against 226Ra because it emits 5 times more alpha particles and
  14. The required level, due to the rarity of the element, and extreme rarity of the, isotope , However, given that ununpentium is only the first period 8 elements on the
  15. From uranium – the most common reactor material – but from the plutonium, isotope ,239Pu. The latter needs to be produced first, according to the following
  16. Agent for radiation therapy, in particular targeted alpha therapy (TAT). This, isotope ,has a half-life of 10 days that makes it much more suitable for radiation
  17. 235U (or 239Pu) and ends with the stable lead isotope 207Pb. Another actinium, isotope ,(225Ac) is transiently present in the neptunium series decay chain, beginning
  18. Acid. Further separation was carried out by ion exchange, yielding a certain, isotope ,of curium. The separation of curium and americium was so painstaking that those
  19. Almost unchanged owing to the very complex separation procedure. The heavier, isotope ,243Am is produced in much smaller amounts; it is thus more difficult to
  20. Alpha emitters. Astatine has 23 nuclear isomers (one, isotope ,does not necessarily correspond to one isomer). Name "/IN"> FFF"/> The most
  21. High price of this nuclear isomer. Furthermore, the element berkelium (243Bk, isotope , ) had been first intentionally produced and identified by bombarding 241Am with
  22. Chemically associated. Francium Francium-223,the only naturally occurring, isotope ,of francium, is the result of the alpha decay of actinium-227 and can be found
  23. Begins with the parent isotope 235U (or 239Pu) and ends with the stable lead, isotope ,207Pb. Another actinium isotope (225Ac) is transiently present in the
  24. Time. Characteristics Astatine is a highly radioactive element: its most stable, isotope , astatine-210,has a half-life of 8.1 hours If a kilogram of astatine-210 could
  25. When Kashmir Bajans and Oswald Helmut Goering encountered the short-lived, isotope ,234mPa (half-life 1.17 minutes) during their studies of the 238U decay. They
  26. Medium half-life of 227Ac (21.77 years) makes it very convenient radioactive, isotope ,in modeling the slow vertical mixing of oceanic waters. The associated
  27. And Philip H. Abelson in 1940 in Berkeley, California. They produced the 239Np, isotope , ( half-life 2.4 days) by bombarding uranium with slow neutrons. Plutonium and
  28. Is achieved by adjusting the pH (to about 6.0 for actinium). This is rare, isotope ,has potential applications in radiation therapy and is most efficiently
  29. An ionic astatine, AgAt. The most important isotope is now astatine-211. This, isotope ,is important in prostate cancer treatment, and,in fact, is the only important
  30. Constant. 231Pa decays to 227Ac; however, the concentration of the latter, isotope ,does not follow the 231Pa depth profile, but instead increases toward the sea
  31. Of the already-created 241Am. Upon rapid decay,242Am converts into the, isotope ,of curium 242Cm (which had been discovered previously). The half-life of this
  32. Is important in prostate cancer treatment, and,in fact, is the only important, isotope ,of the element. Isotopes There are 32 known isotope s of astatine, with range
  33. The Earth's crust. In the universe,argon-36 is by far the most common argon, isotope , being the preferred argon isotope produced by stellar nucleosynthesis in
  34. The" Ivy Mike" studies were declassified and published in 1955. The first, isotope ,of mendelevium,256Md (half-life 87 min),was synthesized by Albert Giorno
  35. Or fuel for spaceships with nuclear propulsion, have been proposed for the, isotope ,242mAm,but they are as yet hindered by the scarcity and high price of this
  36. As result of polonium-218; like the two previous isotope s, decay to an astatine, isotope ,is not the primary decay mode. However, multiple compounds of astatine have
  37. Occurring radio isotope s (and) and francium's only naturally occurring, isotope ,() is also radioactive with a half-life of only 22.0 minutes. Cesium was also
  38. Rate of nuclear fission and low critical mass. Americium-242 is a short-lived, isotope ,with a half-life of 16.02 h. This isotope is preferred against 226Ra because it
  39. Tumours using arsenic-74 (a positron emitter). The advantages of using this, isotope ,instead of the previously used iodine-124 is that the signal in the PET scan is
  40. In the 60-inch cyclotron of Berkeley Radiation Laboratory; this was the first, isotope ,of any element to be synthesized one atom at a time. There were several
  41. Or neutrons in a nucleus. For 80 of the chemical elements, at least one stable, isotope ,exists. Elements 43,61,and all elements numbered 83 or higher have no stable
  42. Determines the chemical element, and the number of neutrons determines the, isotope ,of the element. With protons and neutrons having roughly equal mass. Each
  43. Uranium ores sometimes contain lanthanum and other lanthanides. The actinium, isotope ,227Ac is a transient member of the actinium series decay chain, which begins
  44. Those that have stable isotope s. Twenty-six elements have only a single stable, isotope , while the largest number of stable isotope s observed for any element is ten
  45. Produced worldwide every year. In radioactive decays 40Ar,the most abundant, isotope ,of argon, is produced by the decay of 40K with a half-life of 1.25 years by
  46. The major application of plutonium has been in nuclear weapons, where the, isotope ,plutonium-239 was a key component due to its ease of fission and availability.
  47. Acid/silver (I) solution, forming an ionic astatine, AgAt. The most important, isotope ,is now astatine-211. This isotope is important in prostate cancer treatment
  48. Makes its further up-conversion to 243Am,extremely inefficient. The latter, isotope ,is produced instead in a process where 239Pu captures four neutrons under high
  49. Chemical compounds. Actinium is found only in traces in uranium ores as 227Ac, isotope , which decays with a half-life of 21.773 years, predominantly emitting beta
  50. Biosorption and bioaccumulation of americium by bacteria and fungi. Fission The, isotope ,242m1Am (half-life 141 years) has the largest cross-sections for absorption

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