[Richard777 (OP)]

The Periodic Table may be represented in 3D as a stepped pyramid having four levels. Relationships of the elements may also be revealed by vertical slicing.

The Janet Periodic Table (first printed 1928) is also known as the Left Step Table. The Janet table orders the elements according to the filling sequence of the atom. This table may be re-organized as four square matrices. Each matrix is a different size.

If the cells of each matrix are represented as a cube, then the matrices may be stacked to form a stepped Pyramid with four “levels”. Each level is a matrix.

If each cube represents a chemical element, then the stepped pyramid becomes a 3D Table of Elements. Each level may be viewed as a “floor plan” (square matrix). It is also possible to view vertical sections cut through the pyramid to reveal “vertical relationships” of the elements.

Each element is associated with a cube which has a “location” within the pyramid. Six “location numbers” are required to locate any cube. The six location numbers may also be associated with physical properties of the natural elements (similar to quantum numbers).

Does the Janet Periodic Table contain subtle relationships of properties of the elements?

[evan_au]

Yes, even the traditional periodic table reveals subtle relationships among the elements (and some not-so-subtle ones too).

For instance, I didn't realise until recently that the density of solids tends to increase as you move left to right across the periodic table. It's got to do with the row indicating the number of shells in the atom; as the positive charge in the nucleus increases, it pulls all its shells in more tightly.

But of course there are deviations from every trend...