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1.13 NAMES, SYMBOLS AND ATOMIC WEIGHTS OF ELEMENTS

1.13 NAMES, SYMBOLS AND ATOMIC WEIGHTS OF ELEMENTS

         [Scaled to Ar (12C) = 12, where 12C is a neutral atom in its nuclear and electronic ground state.]

         The atomic weights have been revised in accordance with the figures recommended by IUPAC1 . Elements that lack a characteristic terrestrial isotopic composition have not been included in this table. The standard values of atomic weights and the uncertainties (in parentheses, following the last significant figure to which they are attributed) are given.

From M. E. Wieser, Atomic weights of the elements 2005 (IUPAC Technical Report), Pure Appl. Chem., 2006, 78(11), pp. 2054-2056.

APPENDICES • 1.13 NAMES, SYMBOLS AND ATOMIC WEIGHTS OF ELEMENTS
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หมายเหตุ / Note : TP II 2011 PAGE 341