Difference between revisions of "Unified atomic mass unit"

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{{DefName|
A non-SI unit of mass (u) defined as one twelfth of <sup>12</sup>C in its ground state and equal to 1.660 538 86(28) x 10<sup>-27</sup> kg.
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A non-SI unit of mass defined as one twelfth of the mass of one atom of <sup>12</sup>C in its ground state and equal to 1.660 5402(10) x 10<sup>-27</sup> kg.
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The term atomic mass unit is deprecated.
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Note: The term atomic mass unit (amu) is ambiguous as it has been used to denote atomic masses measured relative to a single atom of <sup>16</sup>O, or to the isotope-averaged mass of an oxygen atom, or to a single atom of <sup>12</sup>C.
 
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Revision as of 03:29, 4 August 2006