Column Descriptions

                                                                         
             Relative           Isotopic      Standard                   
Isotope      Atomic Mass        Composition   Atomic Weight    Notes     
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56  Ba  130  129.9063207(28)    0.00106(1)    137.327(7)        
        132  131.9050611(11)    0.00101(1)  
        134  133.90450818(30)   0.02417(18) 
        135  134.90568838(29)   0.06592(12) 
        136  135.90457573(29)   0.07854(24) 
        137  136.90582714(30)   0.11232(24) 
        138  137.90524700(31)   0.71698(42) 
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