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  1. 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 ?

    4 votes
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  2. 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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  3. 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.

    2 votes
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  4. 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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  5. 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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  6. i had a theory that all atoms are hydrogen based and form their properties based on this structure of heat conductance, where the gaps of space are negative space (electronegativity-) within heat (electronpotential+)that controls movement and pattern attribute concentration(-4~4+=|8|@-0+ charge) culminating into elements(hydrogen@-1~1=|2|/1^(2).001(-1r.+002). could the elements themselves be removed and place into patterns to form different looking tables? or even a moveable form of the element itself?

    7 votes
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  7. it whould be great with a way to do a search in the compound list like if you needed the chemical formula for Ethanol

    4 votes
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  8. The addition of nuclear spins and relative abundances would be very useful for NMR. I'm sure there are a lot of other nuclear properties people may be interested in; this may require another tab.

    e.g.
    http://triton.iqfr.csic.es/guide/eNMR/chem/NMRnuclei.html
    http://www-usr.rider.edu/~grushow/nmr/NMR_tutor/periodic_table/nmr_pt_frameset.html

    9 votes
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  9. As an academic, a lot of sites -- my school library, Pubmed, journals we have access to, and individual sites that use BibText, EndNote and RefWorks (there's also Zotero) make citing much easier.

    Not only are there differences in Chicago, APA, MLA, AMA, Harvard, and so forth, but each journal has their own specifications. There are more advanced plug-ins that just let you search which journal and it will format the citation to those needs.

    PTable is great because it allows you to explore properties with high granularity, and citations for that kind of information are more necessary than things…

    4 votes
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