Atomic Weights and Isotopic Compositions for Neodymium
 Isotope   Relative
Atomic Mass
 
   Isotopic
  Composition  
Standard
Atomic Weight
 
 Notes 
 
60 Nd 142 141.907 7290(20)   0.271 52(40)  144.242(3) g
143 142.909 8200(20)   0.121 74(26)
144 143.910 0930(20)   0.237 98(19)
145 144.912 5793(20)   0.082 93(12)
146 145.913 1226(20)   0.171 89(32)
148 147.916 8993(26)   0.057 56(21)
150 149.920 9022(18)   0.056 38(28)

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