Column Descriptions

                                                                         
             Relative           Isotopic      Standard                   
Isotope      Atomic Mass        Composition   Atomic Weight    Notes     
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32  Ge  70   69.92424875(90)    0.2057(27)    72.630(8)         
        72   71.922075826(81)   0.2745(32)  
        73   72.923458956(61)   0.0775(12)  
        74   73.921177761(13)   0.3650(20)  
        76   75.921402726(19)   0.0773(12)  
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