Atomic Weights and Isotopic Compositions for Technetium
Column Descriptions

                                                                         
             Relative           Isotopic      Standard                   
Isotope      Atomic Mass        Composition   Atomic Weight    Notes     
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43  Tc  97   96.9063667(40)                   [98]              
        98   97.9072124(36)                 
        99   98.9062508(10)                 
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