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chemistry question

Discussion in 'Pre-Medical - DO' started by Student247, Aug 17, 2002.

  1. Student247

    Student247 Member
    7+ Year Member

    Sep 28, 2001
    Likes Received:

    How would you determine the atomic weight of a sample of an unknown pure element?

    This has been puzzling me, because I know its not that difficult yet I can't seem to remember how to do it.

    Any help would be highly appreciated. Please be specific.

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  3. San_Juan_Sun

    San_Juan_Sun Professor of Life
    7+ Year Member

    Aug 9, 2002
    Likes Received:
    Resident [Any Field]
    Posted this on the pre-med board, but I'll put it here too.

    Just thinking out loud here, but if you can figure out what period and family the element is in, you'll know the number of electrons. If you know the number of electrons, you'll know the number of protons the element has (assuming this is a neutral species). If you can figure out the number of neutrons (I don't know how to do this) you can add up the masses of all the sub-atomic particles for the atomic mass of the element. Hope this helps.

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