TPeriodicTable

[wp]

Reviving an old DOS project I stumbled across a component for the periodic table of elements, and I converted it to Lazarus, modernized it and put it into a package named ChemCtrls.

Visit the wiki to see in detail what TPeriodicTable is: https://wiki.freepascal.org/ChemCtrls#TPeriodicTable

Since there is already another chemistry-related component, TChemLabel, I decided to combine both components in the same package "ChemCtrls". You can find the development version on CCR (https://sourceforge.net/p/lazarus-ccr/svn/HEAD/tree/components/chemctrls/). But the current version is also available at Online-Package-Manager (OPM).

In order to avoid naming conflicts, please note that the old ChemText package (with the TChemLabel component) will be removed from OPM, it already has disappeared from CCR.

[Thaddy]

Great!
Will it allow for new discoveries?

[dsiders]

Nice.

I see an unused area that would be perfect for electron shell diagrams. 
https://commons.wikimedia.org/wiki/Category:SVG_electron_shell_diagrams_with_orbital_descriptions

[wp]

Will it allow for new discoveries?

You mean new elements? Currently the elements are hard-coded. Since the discovery of new elements does not happen "every day" I decided to go the easier way. For adding a new element, I would just increment the anMax ("an" = atomic number), and then let the compiler tell me which array needs to be extended.

I see an unused area that would be perfect for electron shell diagrams. 

The periodic table itself is the grid, it does not related to the empty area (which is due to unused lines in the TValueListEditor). I wanted to demonstrate how additional information (atomic mass, radius, electronegativity, ...) can be added. Did not know how to represent the electron configuration in the chart - yes, these electron shell diagrams would be a possibility, but I would put more color into them to distinguish between 1s, 1p, 2s, 2p, ... electrons

[CM630]

The world has changed drastically.
When I was a student the oceans on the Earth were four, the planets in the solar system were nine, rabbits were rodents, the periodic table had 8 columns.
Now the oceans are five, the planets are 8, the rabbits are not rodents and your periodic table looks peculiar and unreadable.
Can it switch to 8 columns mode?

BTW, rabbits tasted much better when they were rodents, this is what bother me most.

[munair]

Awesome! Thanks for sharing.

[wp]

Can it switch to 8 columns mode?

No. That's out-dated and has been replaced by the standard IUPAC 18-column table (or 36-column in which the Lanthanides/Actinides are their correct place - use property CompactLayout to switch between them)

Maybe interesting also: https://www.youtube.com/watch?v=rz4Dd1I_fX0