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Federal
Standard and conventional atomic weights 2016 abridged to four significant digits recent views
Department of the Interior —
2016 four-figure standard and conventional atomic weights of the chemical elements -
Federal
Four-place table of standard atomic weight values of hydrogen through uranium compared since 1961 recent views
Department of the Interior —
Four-figure standard atomic weights of the chemical elements are shown for 1961, 1975, 1983, 2007, 2009, 2011, 2013, 2015, and the current value for 2016. Values...