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Topic: Percent Natural Abundance  (Read 5986 times)

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Inquirer

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Percent Natural Abundance
« on: February 21, 2005, 08:37:54 PM »
I would greatly appreciate your help pointing me in the right direction. How is percent of natural abundance calculated? Is there by chance a table that lists them? Please refer me to the proper sources of information or if at all possible list an answer.
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Offline Mitch

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Re:Percent Natural Abundance
« Reply #1 on: February 21, 2005, 09:09:16 PM »
Can you be more specific, the question is kind of broad. And I like giving short answers.
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Re:Percent Natural Abundance
« Reply #2 on: February 21, 2005, 09:19:41 PM »
all i know is percent natural abundance is used to determine the average molar mass of an element
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Re:Percent Natural Abundance
« Reply #3 on: February 21, 2005, 10:48:49 PM »
They take HIGHLY purified samples of the elements and run them through a Mass Spectrometer.  They then can see what isotopes of the element exist in what proportions.  From this data, they calculate the atomic mass you see on the periodic tables.
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