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Chapter 11: Nuclear Physics

Expert-verified
Modern Physics
Pages: 475 - 522
Modern Physics

Modern Physics

Book edition 2nd Edition
Author(s) Randy Harris
Pages 633 pages
ISBN 9780805303087

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Illustration

72 Questions for Chapter 11: Nuclear Physics

  1. In both D-D reactions in equation (11-18). Two deuterons fuse to produce two particles, a nucleus ofA=3 and a free nucleon. Mass decreases because the binding energy of theA=3nucleus is greater than the combined binding energies of the two deuterons. The binding energy of helium-4is even greater still. Why can't the deuterons simply fuse into a helium-4nucleus and nothing else? Why must multiple particles be produce

    Found on Page 517

  2. Thorium 232 is rather abundant on Earth and is now coming into use as a breeder fuel. It behaves almost exactly like uranium- 238, merely shifted by even numbers of protons and neutrons, which means that it is not the actual fission fuel. What isotope is?

    Found on Page 518

  3. Oxygen-19β−decays. What is the daughter nucleus, and what may be said of the kinetic energy of the emittedβ− particle?

    Found on Page 519

  4. An untrained but perceptive exclaims, “They say that nuclear energy can be released by sticking nuclei together and by breaking them apart. That doesn’t make sense” Straighten out your friend’s confusion.

    Found on Page 518

  5. What fraction of space is actually occupied by ironnuclei in a "solid" piece of iron? (The density of ironis7.87×103kg/m3 ).

    Found on Page 518

  6. At what speed would a particles lave to be directed at gold foil if some are to contact gold nuclei?

    Found on Page 518

  7. From the abundances and atomic masses given in Appendix I of the two naturally occurring isotopes of boron. Determine the average atomic mass of natural boron. Compare this with the value given in the periodic table of Chapter 8.

    Found on Page 518

  8. Determine the approximate ratio of the diameter of a uranium nucleus (A=238)to that of beryllium nucleus(A=9)

    Found on Page 518

  9. a) For a nucleus of A=220, estimate very roughly how many nucleons would be at the surface.

    Found on Page 518

  10. To remove one electron from helium requires 24.6eV. and removing its second takes 54.5eV. The ionization energy of hydrogen is 13.6eV. When applied to helium -4 by what percentage is equation (11-5) in error due to its ignoring of electronic binding energies?

    Found on Page 518

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