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| abstraction > mathematical concept > unit > non SI unit > unified atomic mass unit | 
| unified atomic mass unit (u)  | ||||
| subject | fact | |||
| unified atomic mass unit | has symbol u | ![]()  | 
| has value in SI unit 1.66054 × 10-27 kg, approximately | ![]()  | |
| is an instance of non SI unit | ![]()  | |
| unit | has historical origin | ![]()  | 
| represents | ![]()  |