An electronic version of the periodic table of elements with detailed physical and nuclear information.

Downloadable Windows shareware containing abundant physical, chemical and nuclear information about the elements. Online registration available.

Windows periodic table with element properties search and graphing. Free for personal use.

An interactive periodic table software product for Windows with graphing capabilities.

Chemistry software for the Windows environment.

Periodic Table of elements to compare elements, calculate molecular weights, property visualisation, unit conversion. [Windows]

Free download for Windows.

Text-based periodic table for Unix. The source code, written in C, is available for download and use under the GNU GPL. It includes sound files that give element names and definitions out loud.

iChem, written in Cocoa for Mac OS X exclusively, is a full-featured periodic table and molecular weight calculator.

For Mac and PC, an alternative representation of the periodic table that aims to better place the lanthanoids, actinoids, and hydrogen. The program also includes extensive information about elements, their uses and their properties. Shockwave demo available online.

Macintosh freeware for the creation of periodic tables with selected properties for use in presentations. Each element is colored according to the value of the selected property.

Periodic Table of the Elements.

Developers of general educational software for the Macintosh platform, including Periodic Table software. Online purchasing available.