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Investigating Chemical Elements

By deehann
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    German physicist Wilhem Roentgen and French physicist Henri Becquerel

    They have been working on radioactivity before Marie and Pierre joined their research.
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    Marie and Pierre worked together investigating radioactivity.

    The Curies joined Roentgen and Becquerel's research
  • Announced the discovery of Polonium

    The Curies discovered a new chemical element
  • Announced the discovery of Radium

    The Curies discovered another chemical element