Atomic Weights and Isotopic Compositions for Plutonium
 Isotope   Relative
Atomic Mass 		    Isotopic
  Composition  		 Standard
Atomic Weight 		  Notes 
 
94 Pu 238 238.049 5601(19)     [244]  
239 239.052 1636(19)   
240 240.053 8138(19)   
241 241.056 8517(19)   
242 242.058 7428(20)   
244 244.064 2053(56)   

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