Black Cat systems has released an update for Atomic Mac, bringing it to version 5.2.1. Atomic Mac is a periodic table that contains useful information on each isotope as well as a molecular weight calculator. The new version has an improved user interface. According to Black Cat Systems:
Black Cat Systems has released version 5.2.1 of the Atomic Mac, a periodic table of the elements and nuclear database for the Macintosh. The latest version adds improvements to the user interface.
The Atomic Mac is a periodic table of the elements for the Macintosh. In addition to the usual information found in such programs, The Atomic Mac also contains a wealth of nuclear information on each isotope, including half life, decay mode, and daughter products. X-ray data (fluorescence and binding energies) is also available. A molecular weight calculator makes it easy to find the molecular weight of compounds. A shaded diagram showing the ranges of physical properties makes it easy to visualize relationships across the periodic table.
You can find more information about the update for Atomic Mac at the Black at Systems Web site. Atomic Mac 5.2.1 is available for US$24.99.