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    I was reading through my revision guide(been a year since I last looked at the pages I am right now ) and it says for the definition of:

    the relative atomic mass = average mass per atom of an atomo x 12/the mass of one atmoc of carbon-12

    Well, is the mass of one atom of carbon-12 not 12? So 12/12 = 1 so youre just left with average mass per atom of an atom

    Is that right?
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    Yes, I think it's a case of shut up and write it.
    They can't say hydrogen ebcause Hydrogen is 1.0001 or something, as carbon is used instead. And they can't just say equal to 1... 1 what?
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    (Original post by mik1a)
    Yes, I think it's a case of shut up and write it.
    They can't say hydrogen ebcause Hydrogen is 1.0001 or something, as carbon is used instead. And they can't just say equal to 1... 1 what?
    Ahh right, I see, one of those political bits of *******s
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    (Original post by imasillynarb)
    Ahh right, I see, one of those political bits of *******s
    Hydrogen was previously used as the standard, but it was realised that its relative mass was 1.0008, and since it's a gas it is difficult to work with.

    Carbon-12 is now the standard because it is a nice solid and is abundant.
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    Carbon-12 is now the standard because it is a nice solid and is abundant.
    Yes this was true in the olden days, but the main reason is beacuse the Carbon-12 isotope has a mass which has been accuartely worked out to be 12.0000...
 
 
 

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