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Homework Help: Range Of Half-lives Of Different Radioactive Elements

  1. Jul 19, 2006 #1
    The Range Of Half-lives Of Different Radioactive Elements Is From_______
    A)hours To Years
    B)hours To Weeks
    C)days To Months
    D)seconds To Billions Of Years
    E)days To Weeks
  2. jcsd
  3. Jul 19, 2006 #2
    If you want an answer to your question, the easiest thing to do is look it up on google or some other search engine.
  4. Jul 20, 2006 #3
    i would say (d) based on what i read many years ago in some book that the half life of some elements is in the billions of years
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