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


History of the recommended atomic-weight values*

Fluorine

Z
E
Year
Ar(E)
U[Ar(E)]
D[Ar(E)]
D[Ar(E)]
U[Ar(E)]
9 F 1882 19.03 0.1 0.032 0.32
1894 19 3 0.0016 0.001
1896 19.03 0.03 0.032 1.1
1897 19.06 0.03 0.062 2.1
1900 19.05 0.03 0.052 1.7
1903 19 0.3 0.0016 0.005
1925 19 0.03 0.0016 0.053
1961 18.9984 0.0003 -0.0000032 -0.011
1969 18.9984 0.0001 -0.0000032 -0.032
1971 18.9984 0.00001 -0.0000032 -0.32
1975 18.998403 0.000001 -0.0000002 -0.2
1985 18.9984032 0.0000009 0 0
1995 18.9984032 0.0000005

> 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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