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''See also [[Unified atomic mass unit]]''


In [[physics]], the atomic mass constant ''m''<sub>u</sub> is 1/12 of the mass of the <sup>12</sup>C nuclide, in its ground state and at rest.  
In [[physics]], the atomic mass constant ''m''<sub>u</sub> is 1/12 of the mass of the <sup>12</sup>C nuclide, in its ground state and at rest.  

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See also Unified atomic mass unit

In physics, the atomic mass constant mu is 1/12 of the mass of the 12C nuclide, in its ground state and at rest.

By definition mu is equal to 1 u the unified atomic mass unit. The latest value is mu = 1.660 538 782 × 10−27 kg.[1]

Reference

  1. Retrieved on December 4, 2007 from NIST website