Atomic Weights and Isotopic Compositions for Rhenium
 Isotope   Relative
Atomic Mass 		    Isotopic
  Composition  		 Standard
Atomic Weight 		  Notes 
 
75 Re 185 184.952 9545(13)   0.3740(2)  186.207(1)  
187 186.955 7501(16)   0.6260(2)

[skip navigation] National Institute of Standards and Technology NIST Physical Measurement Laboratory NIST Physical Measurement LaboratoryAtomic Weights and Isotopic Compositions Main Page