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Mass Spectrum

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  1. Jan 7, 2017 #1
    IX2F
    Iodine has a stable naturally-occurring isotope (127I atomic mass 126.904 amu).
    Fluorine has a stable naturally-occurring isotope (19F atomic mass 18.988 amu).
    Element "X" has two stable naturally-occurring isotopes

    What is the atomic mass of the less massive isotope of element X?
    What is the percent natural abundance of the less massive isotope of element X?

    Can someone explain how to do these questions? mass sprectrum.JPG

    Thank you
     
  2. jcsd
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