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Homework Help: Radiation - Marie Curie

  1. May 12, 2015 #1
    1. The problem statement, all variables and given/known data
    Marie curie referred to radioactivity as an invisible radiation that exposed photographic plates. What causes materials to be radioactive and what part of the atom is affected.

    2. Relevant equations

    3. The attempt at a solution
    cosmic rays and fallout? The electrons are removed from the atom called ionized. Also uranium causes radioactive materials.
  2. jcsd
  3. May 12, 2015 #2


    Staff: Mentor

    Try reading up on the definition of radioactive decay and you'll find better answers to your questions.
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