Atomic Weights and Isotopic Compositions for Radon
 Isotope   Relative
Atomic Mass
 
   Isotopic
  Composition  
Standard
Atomic Weight
 
 Notes 
 
86 Rn 211 210.990 6011(73)     [222]  
220 220.011 3941(23)   
222 222.017 5782(25)   

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