• meta-synthesis
• About
  About meta-synthesis Reviews Products & Services Contact Us FAQs
• Our Websites
  The INTERNET Database of Periodic Tables The Chemogenesis Web Book The Chemical Thesaurus Chemistry Tutorials & Drills The Truncated Tetrahedron Orange Gate Journal George Truefitt FRIBA Mac Ruff's PNG Sketchbooks STS Archery Club Scores Database 70 Metre Internet Archery League 50 Metre Compound League MRL's Bow Tuning Page
• Web Book Chapters
  Web Book Home Page | Chemogenesis Main Index Foreword:  Chemogenesis & Chemical Education Part I   Atoms | Elements | Periodic Tables 1.1  Introduction to Chemogenesis 1.2  Nucleosynthesis of The Elements 1.3  The Segrè Chart 1.4  Quantum Numbers to Periodic Tables 1.5  The Periodic Table: What Is It Showing? 1.6  The INTERNET Database of Periodic Tables 1.7  Periodicity Part II   Structure | Bonding | Material Type 2.1  Mono-Bond Typed Binary Compounds 2.2  Binary Compound Synthlet 2.3  Electronegativity 2.4  van Arkel-Ketelaar Triangles of Bonding 2.5  Tetrahedra of Structure, Bonding & Material Type 2.6  Structure, Bonding & Material Synthlet 2.7  The Classification of Matter: Chemical Stuff Part III   Interactions | Reactions | Mechanisms 3.1  The Chemogenesis Analysis: An Overview 3.2  Lewis and Brønsted Models of Acidity 3.3  The Hard Soft [Lewis] Acid Base Principle 3.4  Main Group Elemental Hydrides 3.5  Five Hydrogen Probe Experiments 3.6  Congeneric Dots, Series & Planars 3.7  Quantifying Congeneric Behaviour 3.8  Ligand Replacement Congeneric Series 3.9  Congeneric Array Interactions 3.10  Emergence of Organic Chemistry 3.11  Congeneric Array Database 3.12  The Five Reaction Chemistries 3.13  Lewis Acids & Lewis Bases: A New Analysis 3.14  The Lewis Acid/Base Interaction Matrix 3.15  Patterns in Reaction Chemistry Poster 3.16  Lewis Acid/Base Interaction Matrix Database 3.17  Nucleophiles, Bases & The Fluoride Ion 3.18  Redox Chemistry 3.19  Redox Chemistry Synthlet 3.20  Radical Chemistry 3.21  Diradical Chemistry 3.22  Photochemistry 3.23  Species/Species Interactions 3.24  The Simplest Mechanistic Step: STAD 3.25  Unit & Compound Mechanistic Steps 3.26  The Mechanism Matrix 3.27  Addition To A Double Bond Synthlet 3.28  Pericyclic Reaction Chemistry Part IV   Chemical Theory 4.1  Why Do Chemical Reactions Occur? 4.2a  Thermochemistry: List Reactions Synthlet 4.2b  Thermochemistry: Play With Reaction Synthlet 4.2c  Thermochemistry: Bulid A Reaction Synthlet 4.3  Timeline of Structural Theory 4.4  Modern Lewis Theory 4.5  Valence Shell Electron Pair Repulsion: VSEPR 4.6  Diatomic Species by Molecular Orbital Theory 4.7  Polyatomic Species: Molecular Orbitals 4.8  Organic π-Systems 4.9  Functional Group Database Part V   Complexity & Emergence 5.1  Chemistry & Complexity: Systems 5.2  Linear Chemistry Systems 5.3  Chemical Systems Prone to Complexity Part VI   Extras 6.1  Chemogenesis Videos 6.2  Chemical Thesaurus Reaction Chemistry Database 6.3  Chemogenesis Paper 6.4  Electronegativity as a Basic Elemental Property 6.5  Literature References & Further Reading

Periodic Table T-Shirts & more from the meta-synthesis   See More   Merch Store

The INTERNET Database of Periodic Tables

There are thousands of periodic tables in web space, but this is the only comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Mark R. Leach Ph.D.

Use the drop menus below to search & select from the more than 1300 Period Tables in the database: 

• SEARCH:
• By Decade
  Formulations 2020 to present day Formulations 2010 – 2019 Formulations 2000 – 2009 Formulations 1950 – 1999 Formulations 1900 – 1949 Formulations 1850 – 1899 Formulations 1800 – 1849 Formulations Before 1800
• By Type
  Periodic Tables showing Data Spiral & Helical Formulations 3-Dimensional Formulations Miscellaneous Periodic Tables Books & Reviews Non-Chemistry Periodic tables Top 10 Periodic Tables Recently Added Periodic Tables
• Pre-Selected
  Best Four Periodic Tables for Data All Periodic Tables by Name All Periodic Tables by Date All Periodic Tables by Reverse Date All Periodic Tables, as Added to the Database All Periodic Tables, reverse as Added Elements by Name Elements by Date Discovered Search for: Mendeleev/Mendeléeff Search for: Janet/Left-Step Search for: Eric Scerri Search for: Mark Leach Search for: René Vernon Search for: Electronegativity
• By Year
  2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960 1959 1958 1957 1956 1955 1954 1953 1952 1951 1950 1949 1948 1947 1946 1945 1944 1943 1942 1941 1940 1939 1938 1937 1936 1935 1934 1933 1932 1931 1930 1929 1928 1927 1926 1925 1924 1923 1922 1921 1920 1919 1918 1917 1916 1915 1914 1913 1912 1911 1910 1909 1908 1907 1906 1905 1904 1903 1902 1901 1900 1899 1898 1897 1896 1895 1894 1893 1892 1891 1890 1889 1888 1887 1886 1885 1884 1883 1882 1881 1880 1879 1878 1877 1876 1875 1874 1873 1872 1871 1870 1869 1868 1867 1866 1865 1864 1863 1862 1861 1860 1859 1858 1857 1856 1855 1854 1853 1852 1851 1850 1844 1843 1842 1838 1836 1831 1830 1829 1825 1824 1817 1814 1813 1811 1808 1807 1804 1803 1802 1801 1800 1798 1794 1791 1789 1787 1783 1782 1781 1778 1775 1774 1772 1771 1766 1753 1751 1748 1735 1718 1700 1690 1687 1682 1671 1669 1624 1617 1520 1000 -300 -450 -800 -1000 -2000 -3500 -3750 -5000 -6000 -7000 -9000

The 10 Periodic Tables most recently added to the database:

Bilateral Symmetry in the Periodic Binodic Table

René Vernon writes:

Franklyn's Periodic Table

Franklyn writes on sciencemaddness.org: Electronic Orbital Periodicity Mendelevian grouping is only one possible organizational scheme, regardless of the schematic choice. A table is useful only to the extent that it provides easy reference to data and comparison. Most everyone who has considered arranging elements in tabular form has pondered what layout best serves the purpose. Below is a table I once made to determine the electronic shell and orbital structure of any element at a glance. Everything to the left and above the elements position indicates the complete full orbitals for those shells. Actually you can see the goup memebers run diagonally from upper left to lower right This arrangement shows that the progression of successive electrons is not straight forward with regard to placement within the atoms. The Mendelevian sequence begining with period 6 through the Lanthanides back to period 6 transition metals until Radon, continuing with period 7 ending with the first member of the Actinides, is as follows:

• shell 6, s orbital - Cesium, Barium (Cs, Ba)
• shell 5, d orbital - Lanthanum (La)
• shell 4, f orbital - Cerium to Lutecium (Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu)
• shell 5, d orbital - Hafnium to Mercury (Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg)
• shell 6, p orbital - Thallium to Radon (Tl, Pb, Bi, Po, At, Rn)
• shell 7, s orbital - Francium, Radium (Fr, Ra)
• shell 6, d orbital - Actinium (Ac)
• shell 5, f orbital - Thorium (Th)

Thanks to René Vernon for the tip!

Periodic Table of Food Initiative (PTFI)

Imagine a world where farmers choose to grow specific foods to combat food insecurity and diet-related chronic diseases using practices that are also good for the planet. A world where people everywhere are enabled to select customized diets that support their vitality. This future harnesses the power of food not only as a solution to hunger, but as an essential resource to support the well-being of communities and the environment.

The Periodic Table of Food Initiative (PTFI) is accelerating this future to empower data-driven solutions to our most pressing food system challenges: climate change, biodiversity loss, and malnutrition.

Visit the website: https://foodperiodictable.org

One of Mendelejeff's Tables, Modified

From Smith A 1918, General Chemistry for Colleges, 2nd ed., The Century Co., New York, p. 299

René Vernon writes:

• H is missing, as are the noble gases.
• Consequently, the period numbers are out by one apiece.
• Seven groups are on the left and seven are on the right (the ever present allure of symmetry).
• After La, Ce is placed under Zr, and Nd is placed under columbium/technetium.
• According to Smith the rest of the lanthanide elements do not fit into any series, because their valences and other chemical properties do not permit most of them to be distributed over so many different groups.
• Po is expected to be a metal which is what it turned out to be Smith has anticipated that astatine will be a metal. Nine decades later, Hermann, Hoffmann & Ashcroft (2013) predicted the same thing: Hermann, A.; Hoffmann, R.; Ashcroft, N. W. (2013). Condensed astatine: Monatomic and metallic. Physical Review Letters, 111 (11), 116404-1–116404-5
• While he does not discuss it, Smith appears to have allowed for missing elements between Li and Gl and between Na and Mg.
• The three elements inside square brackets are those predicted by Mendeleev.

Can I Lick It? Periodic Table

From Reddit, a "A cool guide to element lickability".

Mark Leach writes:

"I think I would colour calcium yellow as it bubbles hydrogen gas when added to water."

Thanks to René Vernon for the tip!

Kudan's 3D Model of The Periodic Table

Pavel V. Kudan's 3D model of the Periodic Table from Research Gate and via direct download.

Parvel writes:

"The shape of this 3D model allows to show most important thing – H may be aligned over F-Ts and He may be aligned over Ne-Og without classification of H to group F-Ts or He to group Ne-Og. To see that it is needed only that cylinder to be tough (hard) and flat parts to be flexible with ability to change angle. Than is important because according Mendeleev’s principle, maximum valence is main for grouping elements and it is controversial to have element with maximum valence 2 between elements with maximum valence 8.

"Coloring He as gray in the 3D model just reflex the fact that it goes just before the energy gap, as well as coloring Ne-Og in gray show that they too go just before the energy gaps, which makes He and Ne-Og noble. The main is not coloring, but the ability to align and demonstrate.

"You may also remember that the issue of opening the new IUPAC Group 2 project to discuss He group as a continuation of the IUPAC Group 3 project has already been raised in e-mail correspondence with IUPAC some time ago in protection of our reconstruction of Landau’s geometry of the Periodic table.

"I agree with you that double periodicity is important, but also rearrangements of electronic configurations caused by properties of d-orbitals also must be taken in account. For example, Cu has valences 1 or 2, Zn has valence 2 due to special properties of d-orbitals. The 3D model of the Periodic table separates the ability of d-orbitals to steel electrons from s-orbitals and f-orbitals causing of such effects.

"Also when you will have a copy of the 3D model you will see that it unifies both geometry of the Mendeleev’s Periodic table and geometry of the Janet’s Periodic table. Following anticlockwise you may see Mendeleev’s order while following clockwise you may see Janet’s order. It is similar to having the 3D moles of globe as visual aid for better vision of Mendeleev’s Periodic table and Janet’s Periodic table as flat detailed maps."

Ossmi LH & Chasib's Periodic Table

By Dr Laith Al- ossmi, Thi-qar University, Iraq: Al Ossmi LH & Chasib K F, A New Method of Elements Arrangement to Reattach the F–Block Elements of Lanthanides and Actinides in the IUPAC's Periodic Table of Elements, Med & Analy Chem Int J, 3, 4,2019, pp 1–18. DOI 10.23880/macij-16000148

The new 3-dimantional layout of the periodic table graphically shows the main body parts of the table and also these vertical and horizontal coordinators of Periods, Groups, and Nadas.

Emerson's Periodic Table of Atomic Weights

Emerson BK, Helix chemica: A study of the periodic relations of the elements and their graphic representation, American Chemical Journal, vol. 45, pp. 160–210 (1911). The formulation below appears on page 173; a scanned pdf version of the paper can be viewed here.

René Vernon writes:

Emerson includes two elements before hydrogen: "E" (either the luminiferous ether or the electron) and "Coronium". There are also two elements between hydrogen and helium: "Nebulium" and "Protofluorine".

This is the first time I have seen a PT showing four extra elements and where they are supposed to fit.

After La, Emerson incorporates 13 lanthanides (Ce to Lu) as transition elements into his 7th period.

Emerson missed dysprosium, between Tb and Ho.

"A, B and C" at the bottom right are supposed to be 'halogen emanations'.

Mark Leach adds that Emerson's very odd Periodic Table of Atomic Weights does not actually show any atomic weights.

University of UNAM Periodic Table

Mexico City, University of UNAM Chemistry Department

Thanks to Marcus for the tip!

Periodic Table Regions

Permanent link to the comic: https://xkcd.com/2913/
Image URL (for hotlinking/embedding): https://imgs.xkcd.com/comics/periodic_table_regions.png

Thanks to Marcus for the tip!

© Mark R. Leach Ph.D. 1999 –

Queries, Suggestions, Bugs, Errors, Typos...

If you have any:

Queries
Comments
Suggestions
Suggestions for links
Bug, typo or grammatical error reports about this page,

please contact Mark R. Leach, the author, using mark@meta-synthesis.com

This free, open access web book is an ongoing project and your input is appreciated.