Kalzium - Kalzium (German for: Calcium) is a periodic table of the elements for KDE SC 4.
ChemDraw - ChemDraw - The Gold Standard for Chemical Structure Drawing and Research Publications.
Avogadro - Avogadro is a free, fantastically easy to use molecule editor.
Periodic-table.io - Interactive periodic table of the chemical elements in 38 languages - Includes properties, history, name origin, facts, applications, hazards, isotopes and more
ACD/ChemSketch - ACD/ChemSketch for personal and academic use brings the power of our structure drawing package to your home computer.
Periodic Table of Elements - A Periodic Table of Elements that contains more than 25 scientific truths about each element...