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


History of the recommended atomic-weight values*


Zirconium

Z
E
Year
Ar(E)
U[Ar(E)]
D[Ar(E)]
D[Ar(E)]
U[Ar(E)]
40 Zr 1882 89.57 0.1 -1.6 -17
1894 90.6 0.3 -0.62 -2.1
1897 90.4 0.3 -0.82 -2.7
1902 90.6 0.3 -0.62 -2.1
1925 91 3 -0.22 -0.075
1927 91.22 0.03 -0.004 -0.13
1969 91.22 0.01 -0.004 -0.4

> 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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