Atomic Weights and Isotopic Compositions for Californium
Column Descriptions

                                                                         
             Relative           Isotopic      Standard                   
Isotope      Atomic Mass        Composition   Atomic Weight    Notes     
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98  Cf  249  249.0748539(23)                               
        250  250.0764062(22)                
        251  251.0795886(48)                
        252  252.0816272(56)                
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