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2016 four-figure standard and conventional atomic weights of the chemical elements
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The atomic weights are available for elements 1 through 118 and isotopic compositions or abundances are given when appropriate. Version 3.0.
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Standard atomic weights of the elements 2015
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This handbook provides a selection of the most important and frequently used atomic spectroscopic data in an easily accessible format. The compilation includes energy levels, ionization energies,...
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