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  1. Make the Printable PDFs available in other languages than English (Swedish please).

    4 votes
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  2. For example, H+, Fe2+/Fe3+, O2-, Ir4+, etc.

    1 vote
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  3. On my windows pc, whenever I switch to the electrons page on the PT, my computer lags a ton and task manager shows that chrome takes up 90% of CPU usage. This doesn't happen on my iPad or anything so I think it's some sort of windows bug

    1 vote
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  4. Make a small graphic of the atom, showing the electrons in their shells.

    6 votes
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  5. Hello,
    this periodic table is really fantastic !
    There is yet a lot of useful information, it could be interesting to improve the properties of table with crystallographic parameters for elements that can be found in solid state. for example, lattice parameter, crystal class, space group etc ...
    Anyway, many thanks for this great work !
    Georges

    2 votes
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  6. Hello, I am a big fan of your work and I think it would be interesting to add (in the #Isotopes tab of ptable) two things I am missing:
    1- For each radioactive isotope, the daughter isotope(s) and probabilities associated to each decay mode.
    2- Isomers. For example: the Ag110 is included in the table, but there is no data for Ag110m. The same goes for all other isomers.

    3 votes
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  7. I don't even know if this is feasible, given the amount of information this adds and how it would work with the programming, but I think it would be a nice addition to Ptable and may solve some issues I've noticed with the melting and boiling points.

    E.g.: tungsten is said to have the highest melting point of all elements, but the table shows carbon melting after tungsten. Also, carbon's Wikipedia page says it sublimates at atmospheric pressure, so it shouldn't be melting at all.

    Thank you for your attention.

    3 votes
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  8. Allow two elements e.g.( two hydrogen elements in the feature)

    5 votes
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  9. As a colourblind chem major, I love using your resource but it is sometimes difficult to look at, may I suggest some sort of colourblind mode which makes it somewhat easier to see general group/period trends?

    6 votes
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  10. term symbols are important for spectroscopic and magnetic properties. you can find them at the NIST periodic table: https://www.nist.gov/pml/periodic-table-elements

    6 votes
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  11. I love playing with the temperature slider, and I see why it's colored the way it is. However, you could add yet one more bit of useful information to this glorious chart by offering a different slider which showed peak color of black body radiation temperature. Obviously it would be fairly meaningless outside the visible light ranges. But when I was slowly ramping temperature up to visualize the different metals I work with as they changed to liquid phase and some even to gas, glancing back up at the temperature slider gave me a sense of cognitive dissonance, as around…

    3 votes
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  12. I think it would be awesome if you could include a link to the appropriate video from the youtube channel Periodic Videos, much like the current link for Wikipedia. This is a youtube channel devoted to educational videos about all of the elements. They are highly informative and I feel that it would be a great addition.

    4 votes
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  13. It would be nice to have a view displaying the "origin" of the elements: merging neutron starts, exploding massive stars, exploding white dwarves, cosmic ray fission, etc. Such as shown on:

    https://www.visualcapitalist.com/visualizing-the-origin-of-elements/

    or

    https://www.sciencealert.com/this-awesome-periodic-table-shows-the-origins-of-every-atom-in-your-body

    and many other places.

    3 votes
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  14. For a suggestion, I have one strong suggestion for adding a property: Tensile Strength.
    Actually, I would like to make a proposal; I am currently collecting this data for each element in a spreadsheet already.
    When it is done, I would like to show it to you along with sources, so you can consider adding the data to the website's element property.

    First, I would like to try to demonstrate why specifically Tensile Strength is worthy among countless mechanical properties of materials.
    https://en.wikipedia.org/wiki/Strength_of_materials#Stress_parameters_for_resistance
    In an introductory material science paper, it focused heavily on Stress–strain curve, and various testing for material…

    3 votes
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  15. The data is available on Wikipedia:
    https://en.wikipedia.org/wiki/Prices_of_chemical_elements

    It would be great to be able to visualize this data on Ptable.

    2 votes
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  16. Could you add an extra mode where you could view the periodic table in the form of a table of nuclides and have the options of highlighting all the properties ?

    1 vote
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  17. A sort of molecular weight calculator for single elements (and/or) compounds would be great! Would be on this site way more often and have far more use for it than trying to do it all with separate online calculators

    13 votes
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  18. maybe add important numbers like avagadroes number and the speed of light, and also some diatomic molecules and some polyatomic ions

    1 vote
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  19. I would LOVE to have Mendeleev's original table with the option to view the properties, etc. And, there are so many other alternative tables!

    I would be happy to help program this over the summer break.

    1 vote
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  20. Make the rare earth metals only have 14 columns. (57-70 and 89-102) This displays that the angular momentum 3 (f) has 7 magnetic quantum numbers (-3,-2,-1,0,1,2,3), 2 spins each (-1/2, 1/2) = 14 electron capacity. If other words it if you use the periodic table to help you do the electron configuration, instead of the electron tree, it will be correct because the "f block" on the periodic table should only hold 14 electrons.

    3 votes
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