The Single Helix Chemical Element System Model The natural atoms can only be arranged with all element relationships perfectly correct in a model by spiralling every element across one row - in a single helix. Flat periodic tables currently employ organized element data in the more convenient 2D tabular format necessary for easier printing, study and work of Chemistry. The differences between 2D periodic tables and the three-dimensional system model photographed to illustrate this principle in the views below have been annotated underneath. . . . .

The Hydrogen box has been stretched and wrapped to maintain atomic number sequence with Helium, uniting the first period, atop the 8 period Main Group element tower at the left. Instead of being at the edges of periodic tables, in the Alexander Arrangement of Elements the ends and beginnings of the shells/periods are together - greatly improving trends teaching.

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Hydrogen's unique extended databox of this model makes explicit the concept that Period 1 is quite different from the periods on the Main Group (S- & P-blocks) below. The one databox deep downslant feature of the AAE's P-block elements is what allows both ends of sequential shells/periods to connect, enablng numerically continuous and contiguous elements - a factor that is explicit in the Periodic Law, but can't be fully complied with in 2D periodic tables.

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Instead of Main Group blocks being pushed apart by the transition metals, common in periodic tables, the other block loops being pinched where they join between Groups 2 & 3 avoid that distortion (center). Feeling and seeing the natural beauty of science, which are expressed in AAE models - either as a great periodic table or a model of the reality of the atoms/elements systematized according to the Periodic Law - provides greater understanding and appreciation of Science.

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The elements' helix producing downslant in the AAE, only in the P-block, might be on any part of the Main Group elements in order to qualify as an accurate depiction (below) of the chemical element system: A model with all sequences of atomic numbers and element groups in continuous and contiguous arrangement, complying fully with the Periodic Law. < BACK