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Radioactivity and the Atomic Nucleus

  • Charles H. Holbrow
  • James N. Lloyd
  • Joseph C. Amato
  • Enrique Galvez
  • M. Elizabeth Parks
Chapter

Abstract

In 1896 Henri Becquerel discovered that compounds containing uranium emit radiations that can penetrate opaque paper and even thin sheets of metal and cause photographic plates to darken. Like x-rays, these emissions ionized air and caused electroscopes to discharge, but unlike x-rays, they occurred without any external source of excitation. Becquerel’s student, Marie Curie, named this spontaneous emission of ionizing radiation “radioactivity.”

Keywords

Atomic Nucleus Mass Number Alpha Particle Close Approach Radioactive Decay 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Charles H. Holbrow
    • 1
  • James N. Lloyd
    • 2
  • Joseph C. Amato
    • 3
  • Enrique Galvez
    • 4
  • M. Elizabeth Parks
    • 4
  1. 1.Charles A. Dana Professor of Physics, EmeritusCambridgeUSA
  2. 2.Department of Physics & AstronomyColgate UniversityHamiltonUSA
  3. 3.William R. Kenan, Jr. Professor of Physics, Emeritus Department of Physics & AstronomyColgate UniversityHamiltonUSA
  4. 4.Department of Physics & AstronomyColgate UniversityHamiltonUSA

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