All the data has been painstakingly compiled from international standards and recommendations by the International Union of Pure and Applied Chemistry, is 100 % error–free and conforms to the latest published information.
A miniature database of chemical and physical information; handy for studying, teaching, and research.
relative atomic mass
number and abundance of natural isotopes
longest–lived radioisotope, type of decay
abundance in the earth′s crust
first ionization energy
melting and boling point
ionic radius by oxidation number
van der Waals radius