NCO Spectral Data Options

Help

Display the following isotopes:

Formula   (# of lines)
14N12C16O 2Π3/2    (9)
14N12C16O 2Π1/2    (8)
14N12C16O 2Δ3/2    (6)
14N12C16O 2Δ5/2    (3)
Total:      (26)

Frequency Range:
to MHz
GHz

ASCII output instead of HTML tables

Clear

The following information may be useful
in choosing which isotopes to search.

 Isotope   Relative
Atomic Mass
 
   Isotopic
  Composition  
Standard
Atomic Weight
 
 Notes 
 
6 C 12   12.0000000(00)   0.9893(8)  [12.0096, 12.0116]  
13   13.003 354 835 07(23)   0.0107(8)
14   14.003 241 9884(40)   

7 N 14   14.003 074 004 43(20)   0.996 36(20)  [14.006 43, 14.007 28]  
15   15.000 108 898 88(64)   0.003 64(20)

8 O 16   15.994 914 619 57(17)   0.997 57(16)  [15.999 03, 15.999 77]  
17   16.999 131 756 50(69)   0.000 38(1)
18   17.999 159 612 86(76)   0.002 05(14)

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

Constants Data for NCO
References for NCO