epinephrine Posted March 1, 2008 Share Posted March 1, 2008 Great links Link to comment Share on other sites More sharing options...
hermanntrude Posted March 3, 2008 Share Posted March 3, 2008 I once wrote out a version of the periodic table with the f-block in it's correct position. I made a mistake in placing Sc and Y, though. Despite that it taught me an awful lot about what the periodic table really shows and how. If I find it, perhaps i'll scan it in. Link to comment Share on other sites More sharing options...
Robin Hood Posted April 29, 2008 Share Posted April 29, 2008 http://www.test-tube.org.uk/morestuff/periodic/page.htm Link to comment Share on other sites More sharing options...
Vts Posted May 13, 2008 Share Posted May 13, 2008 Check out ADOMAH PT, the only periodic table that allows direct reading of the primary quantum number "n" for all periods and strictly follows all four quantum numbers n, l, ml and ms, as well as the Madelung Rule: http://www.perfectperiodictable.com While there, please click on "3D Concept" and the "User's Guide". It is quite revealing ! P.S. It is also listed at http://www.meta-synthesis.com/webbook/35_pt/pt.html#ADOMAH among other most interesting formulations. Link to comment Share on other sites More sharing options...
hermanntrude Posted May 13, 2008 Share Posted May 13, 2008 question about the ADOMAH table: on the website it states that the spd and f blocks represent equally spaces slices of a tetrahedron. Does the g-block fit into the tetrahedron? if it does, is that a coincidence or because of some equation which describes the relationship between the sizes of the sub-shells as being equivalent to the sizes of slices of a tetrahedron? Link to comment Share on other sites More sharing options...
Vts Posted May 13, 2008 Share Posted May 13, 2008 Yes, Block 'g' also fits the same pattern beginning with element No. 121. Only it would make ADOMAH PT 18 elements (or 9 units) taller. You are absolutely right. There is the relationship of the sizes of the sub shells to the size of the tetrahedron. The tetrahedron shown on http://www.perfectperiodictable.com site has edge equal to 9 units. Therefore, there could be only 4 rectangles possible (if only prime numbers are used): 1x8 (s-block), 3x6 (p-block), 5x4(d-block) and 7x2(f-block). There could be no other rectangles possible, given that only prime numbers are used. (green slices also assume the same dimensions if the tetrahedron edge is odd number, only in opposite order). Now, try to make edge of the tetrahedron E=10 units long. We would have following combinations, for "red" slices (spaced 2 units appart as measured along the edges): 1x9 (s-block), 3x7 (p-block), 5x5(d-block), 7x3(f-block) and 9x1(g-block), These are the "red layers", representing the blocks. The green layers would be 8x2, 6x4, 4x6 and 2x8 (just spacers, or matrix, or, perhaps the neutrons within the nucleus). You can see that g-block is 18 elements long (where 1 unit is a pair of elements). If edge is E=11 units, then red layers would be: 1x10 (s-block), 3x8(p), 5x6(d), 7x4(f) and 9x2(block-g, 18 element tall, total of 36 elemets). Therefore, if tetrahedron has edge "E" and rectangles have sides "a" and "b", where side "a" is always odd and "b" can be either even or odd, the dimensions of the subshell blocks follow rule: a + b = E (using only prime numbers). Number of slices, or sub shells: NOS = E/2 with no reminder. All other blocks, such as 'h', 'i', 'j' ... can also be derived in the same manner by making tetrahedron edge E = 12, 13, 14, 15, 16, 17 ... units. This is not a coincidence: The Periodic Law can be completely understood in terms of the tetrahedral geometry. Link to comment Share on other sites More sharing options...
Mr Skeptic Posted May 13, 2008 Share Posted May 13, 2008 A cute table, but it looks like they just took chunks off the periodic table and spaced them out... same information, slightly clearer grouping, but less space efficient (and the table is already a monster for size). Link to comment Share on other sites More sharing options...
hermanntrude Posted May 14, 2008 Share Posted May 14, 2008 I like it. From a teacher's point of view the IUPAC PT is a bit dodgy, since we talk about periodic trends and the PT's ability to describe the electron configuration of any element, but there are exceptions and confusing rule-additions as you go further down the table, and the f-block is almost never seen where it should be. The new one is simpler and I think many students would understand it better and quicker than the IUPAC one. I dont think its necessary to put it inside a tetrahedron, though, although it's interesting. Link to comment Share on other sites More sharing options...
Robin Hood Posted August 12, 2008 Share Posted August 12, 2008 A video about every element! http://www.periodicvideos.com/ Link to comment Share on other sites More sharing options...
Vts Posted December 3, 2008 Share Posted December 3, 2008 You can find all sorts of periodic table formulations HERE. It is quite interesting. Check it out! Link to comment Share on other sites More sharing options...
elas Posted February 10, 2009 Share Posted February 10, 2009 I have posted a novel arrangement of the elements on: http://www.scienceforums.net/forum/showthread.php?t=38485 This has not passed peer review so should be regarded as speculation at present; however I would like to have some comment on the arrangement. Link to comment Share on other sites More sharing options...
Gandalf Posted March 13, 2009 Share Posted March 13, 2009 The periodic table on this site is pretty cool. http://www.ptable.com or http://www.dayah.com/periodic You can change the temperature and see the elements in their forms Solids, Liquids, and Gases. You can see the temperature in three different systems -Kelvin -Celsius -Fahrenheit There is also a search feature, you can see the electron shells, and will enlarge the element your cursor is going over. Link to comment Share on other sites More sharing options...
Mr GeOlOgIsT Posted July 22, 2009 Share Posted July 22, 2009 very good topic thank u Link to comment Share on other sites More sharing options...
dr.syntax Posted August 30, 2009 Share Posted August 30, 2009 is provided for free at: http://www.dayah.com/periodic/ . All the specific information about each element such as melting points,electron configurations, useful and interesting aspects of each element is a simple matter of clicking onto that element. A very usefull tool for any student or professional. Ends the need for searching the web or digging through textbooks to find answers concerning the elements. I just added it to my favorites list. ...dr.syntax Link to comment Share on other sites More sharing options...
hermanntrude Posted August 30, 2009 Share Posted August 30, 2009 this periodic table is very nice... lots of information provided. thanks for the info :0) 1 Link to comment Share on other sites More sharing options...
DrP Posted October 22, 2009 Share Posted October 22, 2009 This one on the U-Tube video gets filled in as the song plays. Always liked the song, was strangely pleasing to see the elements filled in as the song plays. 1 Link to comment Share on other sites More sharing options...
adianadiadi Posted November 20, 2009 Share Posted November 20, 2009 Another site http://www.periodni.com/ Link to comment Share on other sites More sharing options...
williamtul11 Posted April 19, 2010 Share Posted April 19, 2010 go to youtube and look up periodic table of videos. they are put on by a college in the UK Link to comment Share on other sites More sharing options...
JGK Posted April 26, 2010 Share Posted April 26, 2010 http://www.rsc.org/chemsoc/visualelements/pages/pertable_fla.htm Link to comment Share on other sites More sharing options...
Au Posted May 21, 2010 Share Posted May 21, 2010 http://www.pertab.com/table/ It's nice that this periodic table also has a periodic list Link to comment Share on other sites More sharing options...
chihairtools Posted August 14, 2010 Share Posted August 14, 2010 Excellent compilation Medelejev. I feel guilty I have nothing to add. Link to comment Share on other sites More sharing options...
ally7890 Posted September 28, 2010 Share Posted September 28, 2010 haha. the periodic table song......takes me back. great post Link to comment Share on other sites More sharing options...
pkr_legend Posted November 12, 2010 Share Posted November 12, 2010 hi. I need a periodic table which contains the elements, the electronegative,Atom Radius, ion energy and rate of reaction & e.t.c , but I don't need they're numbers, I want it to show how these properties change in the table (for ex. the Radius increases in a group from top to bottom.) Thank U;) Link to comment Share on other sites More sharing options...
mississippichem Posted November 12, 2010 Share Posted November 12, 2010 hi. I need a periodic table which contains the elements, the electronegative,Atom Radius, ion energy and rate of reaction & e.t.c , but I don't need they're numbers, I want it to show how these properties change in the table (for ex. the Radius increases in a group from top to bottom.)Thank U;) Find a good college level general chemistry textbook. A good textbook will cover pretty much all the periodic trends that matter. I think you'll be hard pressed to find a periodic table with rate of reaction though, that would be different for every element and every other reactant. So that periodic table would have to be at least one hundred feet across if not thousands. 1 Link to comment Share on other sites More sharing options...
johnmarsh Posted November 15, 2010 Share Posted November 15, 2010 yes nice one but how u collect this Link to comment Share on other sites More sharing options...
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