Filters: Tags: NA (X) > Categories: Data Release - Revised (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Tyler B Coplen Yesha Shrestha U.S. Geological Survey - ScienceBase National Research Program U.S. Geological Survey Water Resources Categories Data (1) Tag Types Theme (1) Harvest Set (1) Place (1) Tag Schemes None (1) Not Applicable (1) View Results as: JSON ATOM CSV

Tables and charts for isotope-abundance variations and atomic weights of selected elements: 2016 (Ver. 1.1, May 2018) Twelve chemical elements have intervals for their standard atomic weights, namely hydrogen, lithium, boron, carbon, nitrogen, oxygen, magnesium, silicon, sulfur, chlorine, bromine and thallium. Isotopic abundances, isotope-delta values, and atomic weights for each of the lower and upper bounds of materials and compounds of these 12 elements are tabulated. Version 1.1 is the most current version. Categories: Data, Data Release - Revised; Tags: NA, USGS Science Data Catalog (SDC), atomic weights, isotopic abundances