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


History of the recommended atomic-weight values*

Ruthenium

Z
E
Year
Ar(E)
U[Ar(E)]
D[Ar(E)]
D[Ar(E)]
U[Ar(E)]
44 Ru 1882 104.46 0.1 3.4 34
1894 101.6 0.3 0.53 1.8
1896 101.68 0.03 0.61 20
1900 101.7 0.3 0.63 2.1
1953 101.1 0.3 0.03 0.1
1961 101.07 0.03 0 0
1969 101.07 0.03 0 0
1983 101.07 0.02

> 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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