the AAE in space on a clothesline
Spin a Model of Nature's Elements with a Click Above
Then Look Below to Decide if it Would Work Better For Your Students
as a Chemical Element System Model or as a 3d Periodic Table
  the Alexander Arrangement of Elements model of the Chemical Element System
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The Atoms Family. Many of each together is called an element. When discovered, they were studied, tested, described, categorized, and listed. Their weights plus chemical properties led to a scheme that showed a pattern: with the elements were in weight order, similar properties occurred repeatedly.
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The repetition was periodic, meaning: between the first two similar element properties were the same number of elements, as in the next two sets, and in the next two. A French geologist, Alexandre de Chancourtois , found a way to show this: by wrapping the list on a cylinder in a helix.
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The element system is 3D?
It HAS to be if elements in sequence AND similar properties both can interlace. But, while a 3D helix most accurately showed the element system, Mendeleev's later flat table was more convenient for study, work, and property prediction of missing elements.

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The slant of the single helix is in the Main Group in Alexander Arrangements, and location may vary in other Chemical Element System models. Other Candidates created to correct the periodic table may vary. 3D, of course, is necessary to show the system, and a very good example is George Gamow's.
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The Chemical Element System model of the Alexander Arrangement of Elements is the latest to accurately depict the natural elements "so all the elements that should be together are together", representing a natural 'whole', as do World globes to aid understanding maps.
Alexander Arrangement of Elements 3D Periodic Table Alexander Arrangement of Elements 3D Periodic Table Alexander Arrangement of Elements 3D Periodic Table Alexander Arrangement of Elements 3D Periodic Table Alexander Arrangement of Elements 3D Periodic Table
  the Alexander Arrangement of Elements as a 3D Periodic Table model
space Of the many special features of a periodic table, allowing students and chemists to see all the elements at one time is first, allowing scientists, since its wide distribution, to study efficiently and do chemistry effectively.
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Introduce periodic tables with our Randomized to Organized hands-on lesson and our 3D Periodic Table for a memorable class! Students' logic and creativity produces their own 3D table using only only properties.
Better help for trends learning?
Teachers know why: 1. main group elements only; 2. periods in order; 3. Alkaline Metals just a Noble group apart from Halogens using the TrendsTube free download.

space A 3-part PowerPoint tracing the story of periodic tables from ancient history to today, was made to use with our own free lesson but it can be used with your regular periodic table and/or PT intro lesson.
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One of Glenn Seaborg's many Nobel Prizes included separation of the f-block from the rest of the periodic table, which, in Roy's Alexander Arrangement of Elements, was returned - with Glenn's written approval
Alexander Arrangement of Elements 3D Periodic Table Alexander Arrangement of Elements 3D Periodic Table Alexander Arrangement of Elements 3D Periodic Table Alexander Arrangement of Elements 3D Periodic Table Alexander Arrangement of Elements 3D Periodic Table
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