Version History and References - Disclaimer with Relative Atomic Masses
The atomic weights are available for elements 1 through 112, 114, & 116 and isotopic compositions or abundances are given when appropriate. The atomic weights data were published by T.B. Coplen1 in Atomic Weights of the Elements 1999, (and include changes reported from the 2001 review in Chem. Int., 23, 179 (2001)) and the isotopic compositions data were published by K.J.R. Rosman2 and P.D.P. Taylor3 in Isotopic Compositions of the Elements 1997. The relative atomic masses of the isotopes data were published by G. Audi4 and A. H. Wapstra5 in The 1995 Update To The Atomic Mass Evaluation. This data has been compiled from the above sources for the user's convenience and does not represent a critical evaluation by the NIST Physics Laboratory.
1 T.B. Coplen : U.S. Geological Survey, Reston, Virginia, USA
Development of this database was supported in part by NIST's Systems Integration for Manufacturing Applications (SIMA) Program. NIST Standard Reference Database 144 Inquiries or comments: Feedback Online: September 1999 - Last update: February 2005 |