Example of how to reference this online database: (Replace year, month day with database access date.)
- R.A. Dragoset, A. Musgrove, C.W. Clark, and W.C. Martin, (2015), Periodic Table: Atomic Properties of the Elements (Version 8), NIST SP 966. [Online] Available: http://physics.nist.gov/PT [year, month day]. National Institute of Standards and Technology, Gaithersburg, MD.
- Citation Form:
- Author/editor (Year), Title (edition). [Type of medium] Available: URL [Access date].
|Added the September 2014 version of the Periodic Table in PDF and TIFF formats. Values in parentheses indicate the mass number of the longest-lived isotope. Values marked with an asterisk: IUPAC conventional atomic weights, standard atomic weights, for these elements are expressed in intervals. See www.iupac.org for explanation and values.|
|Added the March 2013 version of the Periodic Table in PDF and TIFF formats.|
|A PDF version of the Periodic Table without crop marks is now available.|
|The online version of the Periodic Table has been updated to the most recent printed version, which is dated September 2010. There was also a September 2009 version. Since version 4, elements have been added such that there are no "missing elements" from 1 to 118. Several official names have been added for high Z elements.|
|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.|
|The ionization energy value was updated for Po; fourth printing of NIST SP 966.|
|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.|
|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.|
|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:|
|First printing of this NIST handout.|