Column Descriptions

                                                                         
             Relative           Isotopic      Standard                   
Isotope      Atomic Mass        Composition   Atomic Weight    Notes     
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76  Os  184  183.9524885(14)    0.0002(1)     190.23(3)        g
        186  185.9538350(16)    0.0159(3)   
        187  186.9557474(16)    0.0196(2)   
        188  187.9558352(16)    0.1324(8)   
        189  188.9581442(17)    0.1615(5)   
        190  189.9584437(17)    0.2626(2)   
        192  191.9614770(29)    0.4078(19)  
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