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pre 1900 formulations
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The INTERNET Database of Periodic Tables

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

2019 has been designated the International Year of the Periodic Table as it is the 150th Anniversary of the formulation of Mendeleev's Tabelle I

 pre 1900 formulations  1900 to 1949 formulations  1950 to 1999 formulations  2000 to 2009 formulations    Spiral formulations  3 dimensional formulations
 Data mapping periodic tables  Miscellaneous periodic tables  Books and reviews  non-chemistry periodic tables      All periodic tables




2012

Dates of Discovery of the Elements

The Elements and their dates of discovery, taken from this Wikipedia page:











Two charts showing the dates of discovery of the elements, one from the 'time of the ancients' (10,000 BC) to the present day, and the second from 1700 to the present day.

These show that there were two distinct phases for the discovery of the 118 known elements:

  • The first from about 10,000 BC to 1000 AD when 12 elements were discovered/used; one every 900 years or so.
  • From 1669 until the present day when the other 106 have been rather steadily (and formally) discovered; one every couple of years.
  • The last element to be made/discovered was in 2010.

Data from: this Wikipedia page.

 

Discovery of Copper-9000
Discovery of Lead -7000
Discovery of Gold -6000
Discovery of Iron -5000
Discovery of Silver -5000
Discovery of Carbon -3750
Discovery of Tin -3500
Discovery of Sulfur (Sulphur) -2000
Discovery of Mercury -2000
Discovery of Zinc -1000
Discovery of Antimony -800
Discovery of Arsenic -300
Discovery of Phosphorus 1669
Discovery of Cobalt 1735
Discovery of Platinum 1748
Discovery of Nickel 1751
Discovery of Bismuth 1753
Discovery of Hydrogen 1766
Discovery of Oxygen 1771
Discovery of Nitrogen 1772
Discovery of Chlorine 1774
Discovery of Manganese 1774
Discovery of Molybdenum 1781
Discovery of Tellurium 1782
Discovery of Tungsten 1783
Discovery of Zirconium 1789
Discovery of Uranium 1789
Discovery of Titanium 1791
Discovery of Yttrium 1794
Discovery of Beryllium 1798
Discovery of Chromium 1798
Discovery of Niobium 1801
Discovery of Tantalum 1802
Discovery of Palladium 1803
Discovery of Cerium 1803
Discovery of Osmium 1803
Discovery of Iridium 1803
Discovery of Rhodium 1804
Discovery of Sodium 1807
Discovery of Potassium 1807
Discovery of Boron 1808
Discovery of Magnesium 1808
Discovery of Calcium 1808
Discovery of Strontium 1808
Discovery of Barium 1808
Discovery of Iodine 1811
Discovery of Lithium 1817
Discovery of Selenium 1817
Discovery of Cadmium 1817
Discovery of Silicon 1824
Discovery of Aluminium (Aluminum) 1825
Discovery of Bromine 1825
Discovery of Thorium 1829
Discovery of Vanadium 1830
Discovery of Lanthanum 1838
Discovery of Terbium 1842
Discovery of Erbium 1842
Discovery of Ruthenium 1844
Discovery of Cesium 1860
Discovery of Rubidium 1861
Discovery of Thallium 1861
Discovery of Indium 1863
Discovery of Gallium 1875
Discovery of Ytterbium 1878
Discovery of Scandium 1879
Discovery of Samarium 1879
Discovery of Holmium 1879
Discovery of Thulium 1879
Discovery of Gadolinium 1880
Discovery of Praseodymium 1885
Discovery of Neodymium 1885
Discovery of Fluorine 1886
Discovery of Germanium 1886
Discovery of Dysprosium 1886
Discovery of Argon 1894
Discovery of Helium 1895
Discovery of Neon 1898
Discovery of Krypton 1898
Discovery of Xenon 1898
Discovery of Polonium 1898
Discovery of Radium 1898
Discovery of Radon 1899
Discovery of Europium 1901
Discovery of Actinium 1902
Discovery of Lutetium 1906
Discovery of Protactinium 1913
Discovery of Rhenium 1919
Discovery of Hafnium 1922
Discovery of Technetium 1937
Discovery of Francium 1939
Discovery of Astatine 1940
Discovery of Neptunium 1940
Discovery of Plutonium 1940
Discovery of Americium 1944
Discovery of Curium 1944
Discovery of Promethium 1945
Discovery of Berkelium 1949
Discovery of Californium 1950
Discovery of Einsteinium 1952
Discovery of Fermium 1952
Discovery of Mendelevium 1955
Discovery of Lawrencium 1961
Discovery of Nobelium 1966
Discovery of Rutherfordium 1969
Discovery of Dubnium 1970
Discovery of Seaborgium 1974
Discovery of Bohrium 1981
Discovery of Meitnerium 1982
Discovery of Hassium 1984
Discovery of Darmstadtium 1994
Discovery of Roentgenium 1994
Discovery of Copernicium 1996
Discovery of Flerovium 1999
Discovery of Livermorium 2000
Discovery of Oganesson 2002
Discovery of Nihonium2003
Discovery of Moscovium2003
Discovery of Tennessine2010

A nice graphic from Compound Interest: (click image to enlarge)

 

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pre 1900 formulations 1900 to 1949 formulations 1950 to 1999 formulations 2000 to 2009 formulations Spiral formulations 3 dimensional formulations
Data mapping periodic tables Miscellaneous periodic tables Books and reviews non-chemistry periodic tables All periodic tables


Periodic Table, What is it showing?
Binary Compounds

© Mark R. Leach 1999-


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