Atomic Weights and Isotopic Compositions for Nitrogen
 Isotope   Relative
Atomic Mass
 
   Isotopic
  Composition  
Standard
Atomic Weight
 
 Notes 
 
7 N 14   14.003 074 004 8(6)   0.996 36(20)    14.0067(2) g,r,a,d
15   15.000 108 898 2(7)   0.003 64(20)

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