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unified atomic mass unit
(u)
subjectfact 
unified atomic mass unithas symbol u2001-09-27 09:32:55.0
has value in SI unit 1.66054 × 10-27 kg, approximately2001-09-27 09:32:55.0
is an instance of non SI unit2001-09-27 09:32:55.0
unithas historical origin2001-09-27 09:32:42.0
represents2001-09-27 09:32:42.0