Atomic Weights and Isotopic Compositions for Platinum
 Isotope   Relative
Atomic Mass
 
   Isotopic
  Composition  
Standard
Atomic Weight
 
 Notes 
 
78 Pt 190 189.959 9297(63)   0.000 12(2)  195.084(9)  
192 191.961 0387(32)   0.007 82(24)
194 193.962 6809(10)   0.3286(40)
195 194.964 7917(10)   0.3378(24)
196 195.964 952 09(99)   0.2521(34)
198 197.967 8949(23)   0.073 56(130)

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