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Homework Help: Differences between natural element and built element?

  1. Feb 7, 2007 #1
    at least 10..

    Thank You
     
  2. jcsd
  3. Feb 8, 2007 #2

    Gokul43201

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    Sorry. We can't do your homework for you. Please read the forum guidelines.
     
  4. Feb 9, 2007 #3
  5. Feb 9, 2007 #4
  6. Feb 10, 2007 #5
    Whatever, . . .
    But i think the question is kinda interesting.

    Here is my analysis..

    1) Man made elements are very costly.
    2) They are higher in atomic number and weight.
    3) They are radio-active.
    4) They are .. ?

    Anything else?
     
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