Periodic Table
Links
Celeste
An interactive periodic table software product for Windows with graphing capabilities.
BK Periodic Library
Windows periodic table with element properties search and graphing. Free for personal use.
Synergy Creations
http://www.synergycreations.com/
Developers of general educational software for the Macintosh platform, including Periodic Table software. Online purchasing available.
Atomic Mac
http://www.blackcatsystems.com/software/atomic.html
An electronic version of the periodic table of elements with detailed physical and nuclear information.
Electronic Periodic Table of the Elements
http://www.toddmiller.com/epte/index.html
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.
Periodic Spiral of the Elements
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.