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    Question: What is the average mass number of a sample of magnesium comprising 1 atom Mg-24 to each Mg-25 atom

    I cant seem to get my head around this, i mean dont i need some form of ratio's or what?
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    Is it just 24.5 if the ratio of 24 to 25 is 1:1?
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    (Original post by Olibert)
    Is it just 24.5 if the ratio of 24 to 25 is 1:1?
    :facepalm: yh
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    (Original post by Hanz_a93)
    :facepalm: yh

    Noooo...

    It depends on how many of each there are in a sample.
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    (Original post by charco)
    Noooo...

    It depends on how many of each there are in a sample.
    o ****...
 
 
 
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Updated: September 28, 2010
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