Data Catalog

• Federal

  NIST Atomic Weights and Isotopic Compositions with Relative Atomic Masses

  National Institute of Standards and Technology —

  The atomic weights are available for elements 1 through 118 and isotopic compositions or abundances are given when appropriate. Version 3.0.

  • HTML
• Federal

  NIST Atomic Weights and Isotopic Compositions with Relative Atomic Masses

  Department of Commerce —

  The atomic weights are available for elements 1 through 118 and isotopic compositions or abundances are given when appropriate. Version 3.0.

  • HTML
• Federal

  NIST Handbook of Basic Atomic Spectroscopic Data - SRD 108

  National Institute of Standards and Technology —

  This handbook provides a selection of the most important and frequently used atomic spectroscopic data in an easily accessible format. The compilation includes energy...

  • HTML
• Federal

  NIST Handbook of Basic Atomic Spectroscopic Data - SRD 108

  Department of Commerce —

  This handbook provides a selection of the most important and frequently used atomic spectroscopic data in an easily accessible format. The compilation includes energy...

  • HTML

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