Naked Science Forum

Non Life Sciences => Chemistry => Topic started by: Richard777 on 13/12/2019 13:08:37

Title: Is a 3D Periodic Table useful?
Post by: Richard777 on 13/12/2019 13:08:37
The Janet Periodic Table (first printed 1928) is also known as the Left Step Table. This table may be re-arranged as four square matrices. Each matrix is a different size.

If the cells of each matrix are represented as a cube (block), then the matrices may be stacked vertically to form a stepped pyramid with four “levels”. Each level is a matrix. Each block represents a chemical element and the stepped pyramid becomes a 3 dimensional Table of Elements.

The central four blocks on all levels forms the “core” of the table corresponding to atomic ‘s’ orbitals. The remaining blocks may be considered to be arranged as concentric square rings surrounding the core corresponding to atomic ‘p,d,f’ orbitals.

It is also possible to view vertical sections cut through the pyramid to reveal “vertical relationships” of the elements.

Is a 3D Periodic Table useful?
Title: Re: Is a 3D Periodic Table useful?
Post by: evan_au on 15/12/2019 19:59:31
Also see, on the same topic:
May 2016: Does the Janet Periodic Table reveal subtle features of atomic structure?
https://www.thenakedscientists.com/forum/index.php?topic=66770.0

Jan 2018: Does the Janet Periodic Table contain subtle relationships of the elements?
https://www.thenakedscientists.com/forum/index.php?topic=72243.0

Title: Re: Is a 3D Periodic Table useful?
Post by: evan_au on 15/12/2019 20:10:50
When I went to university, the Chemistry department had a large 3D Periodic table, mounted in a wooden box on the wall.

It contained 3D samples of every* element, so you could see its state, color, etc.

I found this 3D Periodic table informative, because you didn't need to look up other tables to discover these basic properties...

In a science museum, I have subsequently seen smaller ones for sale, mounted in transparent plastic

*At least, the ones that weren't too radioactive.
Title: Re: Is a 3D Periodic Table useful?
Post by: Bored chemist on 15/12/2019 21:57:43
Is a 3D Periodic Table useful?
Not as a shower curtain design.
Title: Re: Is a 3D Periodic Table useful?
Post by: alancalverd on 16/12/2019 07:54:57
It seems that BC and I have something in common! But the serious question is which way round to hang the curtain. If you can read it from inside, it is a great learning tool but not a useful reference during the working day, nor particularly attractive as a bathroom fixture. With the data outside, I guess the print will last longer but I waste a lot of water trying to learn the transition metals backwards.