I  U  P  A  C






News & Notices

Organizations & People

Standing Committees

Divisions

Projects

Reports
..By Year
..By Division
..Other Committees
..Provisionals

Publications

Symposia

AMP

Links of Interest

Search the Site

Home Page

 

 

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


History of the recommended atomic-weight values*

Gold

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

U[Ar(E)]
79 Au 1882 196.61 0.1 -0.36 -3.6
1894 197.3 0.3 0.33 1.1
1896 197.24 0.03 0.27 9.1
1897 197.23 0.03 0.26 8.8
1900 197.2 0.3 0.23 0.78
1953 197 0.3 0.033 0.11
1961 196.967 0.003 0.00045 0.15
1969 196.9665 0.0001 -0.00005 -0.5
1985 196.96654 0.00003 -0.00001 -0.33
1995 196.96655 0.00002

> 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
Copyright © 1997-2000 International Union of Pure and Applied Chemistry.