Before the three–dimensional periodic chart was re-introduced just before this century began, the conventional flat periodic table served generations of students and chemists well, and continues to do so. It provides the basis, not only for the introduction to chemistry, but a guide throughout the career of chemists, biologists, and teachers.
In spite of it's usefulness, difficulties in learning and using it have led to many efforts to improve the table. The elements have been placed in circles & spirals, duplicated elements, step–pyramids, trees, and target shapes with extensions. They have been formed into three–dimensional cubes, pyramids, stacks, even teardrops. Several have excelled the standard periodic table for accuracy and suitability in highly technical ways.

other 3D Periodic Tables

Falling partially within the spiral category, but primarily a helix, the 3D arrangement of the chemical elements developed by Roy Alexander, patented, and originally published in the mid–1990s is the first to retain all the positive features of the flat table.
ALL discontinuities and displacements in the order of the elements have been overcome.

This modern periodic table is called the Alexander Arrangement of Elements, which features connecting the elements for easier understanding of element property trends clearly defining for beginning students the new conclusions regarding the dimensional aspects of hydrogen, atomic structure, and of nature itself.
The latest version, the 3D Forever, has only the natural elements - no created ones - so it will never be outdated - hence the name.
4851 N. Washtenaw Ave., Chicago, IL 60645    773.271.0318
last update 5/22/16