Periodic.pkg - This Newton Book contains information on the properties of the 112 known elements. The properties include boiling point, melting point, state, density, electron configuration, heat of fusion, heat of vaporization, oxidation states, electronegativity, and 1st ionization potential. The elements are indexed alphabetically by name, and the index is linked to each element for quick searches. Also included is a Periodic Table, and a list of particle masses and physical constants. This book uses only 76k of memory, and it should work on any Newton, and on either a Mac or PC. And best of all, it's freeware!