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Finding Atomic Mass Unit by Subatomic Particles

  1. Oct 7, 2014 #1
    If one atomic mass unit is 1/12 of a C-12 atom, so 1 amu must be;

    1 Amu = 1/2 ( Mass of proton + Mass of neutron + Mass of electron )

    But the equation gives the answers that 1 amu is 1,6737 10^(-27) kg, which is different than the internet says
    I am using very sensitive values for the equation so why am I finding nearly %1 error
     
  2. jcsd
  3. Oct 7, 2014 #2

    Borek

    User Avatar

    Staff: Mentor

    No, it doesn't have to be that.

    Google "mass deficit" or "binding energy".
     
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