chemistry

bismuth of 209/83Bi is stable because?

nuclei even or odd # of nucleons. which one is stable?

  1. 👍 0
  2. 👎 0
  3. 👁 78
asked by mike
  1. 209 happens to be the only isotope of Bi that is not radioactive. It is also the largest stable nucleon of any kind. The reasons for is stability are quite complicated. Some attribute it a nuclear "shell model" and the fact that 126 (the number of neutrons) is one of the "magic numbers" of nuclear physics that are unusually stable. Other magic numbers are 2,8,20,50,and 82.

    1. 👍 0
    2. 👎 0
    posted by drwls

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    The following table gives values for the mass defect ∆m for four hypothetical nuclei: A, B, C, and D, isotopes of an element. ABCD Mass defect, ∆m(×10^-29 kg) A. B. C. D -6.0 -2.0 0 +6.0 Which statement is true regarding the

    asked by Sidiqi on March 29, 2018
  2. physics

    the nuclei Co-57 an odd-even unstable nucleus is often used as a source of radiation in nuclear processes. Show that the nuclei is stable relative to beta plus decay by electron capture

    asked by jay on March 30, 2016
  3. physics

    For small nuclei, an equal number of protons and neutrons gives rise to a stable nucleus. However, for larger nuclei, an excess of neutrons is required. Using your knowledge of the relevant physics, discuss why additional neutrons

    asked by Tekila on August 14, 2015
  4. phys

    Although most natural potassium nuclei are stable 39K (93.3%) or 41K (6.7%) nuclei, about 0.0117% are radioactive 40K nuclei, which have a half-life of 1.26 billion years. What fraction of all the potassium nuclei in your body

    asked by Anonymous on June 6, 2013
  5. Physics

    In stars, nucleons (protons and neutrons) form nuclei of atoms via a series of fusion reactions. If for a particular fusion reaction more energy is given off than is required to make it proceed, does the final nucleus have a

    asked by Nat on May 9, 2009
  6. physics

    Although most natural potassium nuclei are stable 39K (93.3%) or 41K (6.7%) nuclei, about 0.0117% are radioactive 40K nuclei, which have a half-life of 1.26 billion years. If you were worried about 40K radioactivity and wanted to

    asked by Anonymous on June 6, 2013
  7. Astronomy

    The Universe is filled with a frozen in Higgs condensate. If this were to suddenly disappear/evaporate, what would happen? (a) All bound matter—nucleons (made of quarks), nuclei (made of nucleons), atoms (made of nuclei and

    asked by qwerty on October 1, 2013
  8. chemistry

    fill in the missing symnbols in the following nuclear bombardment reactions a. 96 4 100 42Mo + 2He = 43 Tc+ ? b. 59 1 56 27Co+ 0n = 25+ ? c. 23 23 1 11Na+ ? = 12Mg+ 0n d. 209 210 1 83Bi+ ? = 84Po+ 0n e. 238 16 1 92U + 8O= ? + 5 0n

    asked by coleman on December 15, 2010
  9. chemistry

    A magic number is the name given to certain numbers of protons or neutrons that have a high correlation to stability in nuclei. Magic # of protons: 2,8,20,28,50,82 Magic # of neutrons: 2,8,20,38,50,82,126, 184 Using general

    asked by michelle on December 4, 2012
  10. chemistry

    Which answer choice correctly describes why larger atoms tend to break apart? The number of neutrons in the nuclei of larger atoms is equal to the number of protons, which makes these atoms less stable. The proportion of protons

    asked by check answer please on September 7, 2017

More Similar Questions