Black Cat Systems ( has released version 6.9.4 of the Atomic Mac, a periodic table of the elements and nuclear database for the Macintosh. This new version updates the Nuclides Table display.

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 is designed to make 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.

The Atomic Mac runs under Mac OS X 10.4 and later and costs US$25. Site licenses are also available. In addition, Black Cat Systems offers discounts on registration fees to students, teachers, schools, and other educational institutions. Details are available at .