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Text File  |  1992-09-01  |  241b  |  7 lines
  1. 1868-1951. German physicist, who demonstrated
  2. that difficulties with Niels Bohr's model of
  3. the atom, in which electrons move around a
  4. central nucleus in circular orbits, could be
  5. overcome by supposing that electrons adopt
  6. elliptical orbits.
  7.