NIST Physics Laboratory Periodic Table: Atomic Properties of the Elements

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Version History

Example of how to reference this online database:
R.A. Dragoset, A. Musgrove, C.W. Clark, and W.C. Martin, (2003), Periodic Table: Atomic Properties of the Elements (Version 4), NIST SP 966. [Online] Available: http://physics.nist.gov/PT [2009, November 7]. National Institute of Standards and Technology, Gaithersburg, MD.
Citation Form:
Author/editor (Year), Title (edition). [Type of medium] Available: URL [Access date].
Version 4
November 2005		 A home page and version history for the periodic table were designed and a high-resolution TIFF file was made available; fifth & sixth printings of NIST SP 966 occurred in September 2004 & September 2005 with no changes to the data values.
Version 4
September 2003		 The ionization energy value was updated for Po; fourth printing of NIST SP 966.
Version 3
September 2002		 The ionization energy values were updated for Ne, Pu, and Cm; the atomic weight values were updated for Zn, Kr, and Dy; and the element with atomic number 118 was removed from the periodic table after a retraction by the Lawrence Berkeley National Laboratory; third printing of NIST SP 966.
Version 2
March 2001		 The ionization energy values were updated for Y, Sm, Gd, Pt, and Bi; elements with atomic number 114, 116 & 118 were added to the periodic table; second printing of NIST SP 966.
Version 1
April 1999		 Periodic Table: Atomic Properties of the Elements available online as a PDF file. All data contained in the periodic table are available from the following three databases:
  1. Ground Levels and Ionization Energies for the Neutral Atoms
  2. Atomic Weights and Isotopic Compositions
  3. Fundamental Physical Constants
Version 1
March 1999		 First printing of this NIST handout.

Return to the periodic table home page.