The Fabric of Atoms

  • Andreas Hofmann


Several simple experiments indicate that neutral substances, i.e. such that possess no overall charge, are composed of charged particles whose individual charges balance each other. For example, if a salt is dissolved in water, the conductivity of the resulting solution is larger than that of pure water. Historically, the first findings in this context (Elster and Geitel 1882; Hertz 1887) were those showing that a metal can emit charged particles when either heated (thermionic emission) or exposed to ultraviolet light (photoelectric effect).


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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Andreas Hofmann
    • 1
    • 2
  1. 1.Eskitis InstituteGriffith UniversityNathanAustralia
  2. 2.Faculty of Veterinary and Agricultural SciencesThe University of MelbourneParkvilleAustralia

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