Skip to Main Content

Isotopic abundances have been taken from the compilation by Strominger, Hollander, and Seaborg (Revs. Modern Physics, 30, 585, 1958). Their values have been rounded to the nearest 0.1 per cent, except in cases of very rare isotopes. The natural isotopic variation may exceed this. Atomic weights are on the carbon-12 scale.

T ABLE 3 - 1. I SOTOPIC A BUNDANCES AND A TOMIC W EIGHTS

Atomic no.   Symbol   Mass no.   Abundance (per cent)   1961 Atomic weight  
99.99  1.00797 
    .01   
He  10-4-10-5   4.0026 
    100   
Li  7.4  6.939 
    92.6   
Be  100  9.0133 
10  ~19  10.811 
    11  ~81   
12  98.9  12.01115 
    13  1.1   
14  99.6  14.0067 
    15  .4   
16  99.8  15.9994 
    17  .04   
    18  .2   
19  100  18.9984 
10  Ne  20  90.9  20.183 
    21  .3   
    22  8.8   
Atomic no.   Symbol   Mass no.   Abundance (per cent)   1961 Atomic weight  
99.99  1.00797 
    .01   
He  10-4-10-5   4.0026 
    100   
Li  7.4  6.939 
    92.6   
Be  100  9.0133 
10  ~19  10.811 
    11  ~81   
12  98.9  12.01115 
    13  1.1   
14  99.6  14.0067 
    15  .4   
16  99.8  15.9994 
    17  .04   
    18  .2   
19  100  18.9984 
10  Ne  20  90.9  20.183 
    21  .3   
    22  8.8   

You do not currently have access to this chapter.

Figures & Tables

Contents

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal