Atomic Weights and Isotopic Compositions for Lutetium
Column Descriptions

                                                                         
             Relative           Isotopic      Standard                   
Isotope      Atomic Mass        Composition   Atomic Weight    Notes     
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71  Lu  175  174.9407752(20)    0.97401(13)   174.9668(1)      g
        176  175.9426897(20)    0.02599(13) 
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