Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Periodic Table of the Elements

periodic table thumbnail

Version History  | Disclaimer
Alexander Kramida, Karen Olsen, and
Yuri Ralchenko
NIST, Physical Measurement Laboratory

The periodic table contains NIST’s latest critically evaluated data for atomic properties of the elements. The PDF is suitable for high-resolution color printing for desk or wall-chart display.

Access the Table:

PDF without crop marks | PDF with crop marks


Formerly known as Standard Reference Database (SRD) 145, but reclassified as an information compilation to be consistent with the Standard Reference Data Act of 1968 and, as amended, January 2017.
Customer Support
NIST Special Publication 966
Online: April 1999  -  Last update: August 2019


This database was funded in part by NIST's Systems Integration for Manufacturing Applications (SIMA) Program.

Contacts

Created July 30, 2009, Updated December 4, 2019