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Pure Appl. Chem., Vol. 70, No. 1, pp. 237-257, 1998.


History of the recommended atomic-weight values*

Boron

Z
E
Year
Ar(E)
U[Ar(E)]
D[Ar(E)]
D[Ar(E)]

U[Ar(E)]
5 B 1882 10.97 0.1 0.16 1.6
1894 11 3 0.19 0.063
1896 10.95 0.03 0.14 4.6
1900 11 0.3 0.19 0.63
1919 10.9 0.3 0.089 0.3
1925 10.82 0.03 0.009 0.3
1961 10.811 0.003 0 0
1969 10.81 0.01 -0.001 -0.1
1983 10.811 0.005 0 0
1995 10.811 0.007

> Return to list or table of elements

Ref. History of the recommended atomic-weight values from 1882 to 1997: a comparison of differences from current values to the estimated uncertainties of earlier values, Pure Appl. Chem., Vol. 70, No. 1, pp. 237-257, 1998.


Page last modified 7 June 2000
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