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A list of who discovered each element

Below is a list of all of the known elements, who they were discovered by and the year they were discovered. Some elements, such as gold, silver and iron, have been known since ancient times, so it is impossible to credit a single person for their discovery. Other elements were discovered around the same time by two or more scientists who were working independently of each other. In these cases, each scientist is listed along with the year they made their discovery. Other elements were discovered by teams of scientists working together. In cases like this, the known members of the team are listed along with a single year of discovery. Click on an element's name for the full story!


Element name Discovered by Year
Actinium Andre-Louis Debierne 1899
Aluminum Hans Christian Oersted 1825
Americium Glenn T. Seaborg
Ralph A. James
Leon O. Morgan
Albert Ghiorso		 1944
Antimony Known since ancient times ?
Argon Sir William Ramsay
Lord Rayleigh		 1894
Arsenic Known since ancient times ?
Astatine Dale R. Carson
K.R. MacKenzie
Emilio Segre		 1940
Barium Sir Humphry Davy 1808
Berkelium Stanley G. Thompson
Glenn T. Seaborg
Kenneth Street, Jr.
Albert Ghiorso		 1949
Beryllium Louis-Nicholas Vauquelin 1798
Bismuth Claude Geoffroy the Younger 1753
Bohrium Scientists at Dubna, Russia 1976
Boron Joseph-Louis Gay-Lussac
Louis-Jaques Thenard
Sir Humphry Davy		 1808
1808
Bromine Antoine-Jerome Balard 1826
Cadmium Friedrich Strohmeyer 1817
Calcium Sir Humphry Davy 1808
Californium Stanley G. Thompson
Glenn T. Seaborg
Kenneth Street, Jr.
Albert Ghiorso		 1950
Carbon Known since ancient times ?
Cerium Jons Jacob Berzelius
Wilhelm von Hisinger
Martin Heinrich Klaproth		 1803
1803
Cesium Robert Wilhelm Bunsen
Gustav Robert Kirchoff		 1860
Chlorine Carl Wilhelm Scheele 1774
Chromium Louis-Nicholas Vauquelin 1797
Cobalt Georg Brandt 1739
Copper Known since ancient times ?
Curium Glenn T. Seaborg
Ralph A. James
Albert Ghiorso		 1944
Darmstadtium Peter Armbruster
Gottfried Munzenber		 1994
Dubnium Scientists at Dubna, Russia
Lawrence Berkeley Laboratory		 1967
1970
Dysprosium Paul-Emile Lecoq de Boisbaudran 1886
Einsteinium Albert Ghiorso et. al. 1952
Erbium Carl Gustaf Mosander 1843
Europium Eugene-Antole Demarcay 1896
Fermium Albert Ghiorso et. al. 1952
Fluorine Ferdinand Frederic Henri Moissan 1886
Francium Marguerite Catherine Perey 1939
Gadolinium Jean Charles Galissard de Marignac 1880
Gallium Paul-Emile Lecoq de Boisbaudran 1875
Germanium Clemens Winkler 1886
Gold Know to the Ancients ?
Hafnium Dirk Coster
Charles de Hevesy		 1923
Hassium Peter Armbruster
Gottfried Munzenber		 1984
Helium Pierre-Jules-Cesar Janssen 1868
Holmium Per Theodor Cleve 1879
Hydrogen Henry Cavendish 1766
Indium Ferdinand Reich
Hieronymus Theodor Richter		 1863
Iodine Barnard Courtois 1811
Iridium Smithson Tennant 1803
Iron Known since ancient times ?
Krypton Sir William Ramsay
Morris M. Travers		 1898
Lanthanum Carl Gustaf Mosander 1839
Lawrencium Albert Ghiorso
Torbjorn Sikkeland
Almon E. Larsh
Robert M. Latimer		 1961
Lead Known since ancient times ?
Lithium Johann August Arfvedson 1817
Lutetium Georges Urbain 1907
Magnesium Sir Humphry Davy 1808
Manganese Johan Gottlieb Gahn 1774
Meitnerium Peter Armbruster
Gottfried Munzenber		 1982
Mendelevium Stanley G. Thompson
Glenn T. Seaborg
Bernard G. Harvey
Gregory R. Choppin
Albert Ghiorso		 1955
Mercury Known since ancient times ?
Molybdenum Carl Welhelm Scheele 1778
Neodymium Carl F. Auer von Welsbach 1885
Neon Sir William Ramsay
Morris M. Travers		 1898
Neptunium Edwin M. McMillian
Philip H. Abelson		 1940
Nickel Axel Fredrik Cronstedt 1751
Niobium Charles Hatchett 1801
Nitrogen Daniel Rutherford 1772
Nobelium Albert Ghiorso
Glenn T. Seaborg
Torborn Sikkeland
John R. Walton		 1958
Osmium Smithson Tennant 1803
Oxygen Joseph Priestley 1774
Palladium William Hyde Wollaston 1803
Phosphorus Hennig Brand 1669
Platinum Known to pre-Columbian Indians
Antonio de Ulloa		 ?
1735
Plutonium Glenn T. Seaborg
Joseph W. Kennedy
Edward M. McMillan
Arthur C. Wohl		 1941
Polonium Marie Sklodowska Curie 1898
Potassium Sir Humphry Davy 1807
Praseodymium Carl F. Auer von Welsbach 1885
Promethium Jacob A. Marinsky
Lawrence E. Glendenin
Charles D. Coryell		 1944
Protactinium Kasimir Fajans
O.H. Gohring		 1913
Radium Marie Sklodowska Curie
Pierre Curie		 1898
Radon Friedrich Ernst Dorn 1900
Rhenium Ida Tacke-Noddack
Walter Noddack
Otto Carl Berg		 1925
Rhodium William Hyde Wollaston 1803
Roentgenium Peter Armbruster
Gottfried Munzenber		 1994
Rubidium Robert Bunsen
Gustav Kirchoff		 1861
Ruthenium Karl Karlovich Klaus 1844
Rutherfordium Scientists at Dubna, Russia
Albert Ghiorso et. al.		 1964
1969
Samarium Jean Charles Galissard de Marignac 1853
Scandium Lars Fredrik Nilson 1879
Seaborgium Albert Ghiorso et. al. 1974
Selenium Jons Jacob Berzelius 1817
Silicon Jons Jacob Berzelius 1824
Silver Known since ancient times ?
Sodium Sir Humphry Davy 1807
Strontium Adair Crawford 1790
Sulfur Known since ancient times ?
Tantalum Anders Gustaf Ekenberg 1802
Technetium Carlo Perrier
Emilio Segre		 1937
Tellurium Franz Joseph Muller von Reichenstein 1782
Terbium Carl Gustaf Mosander 1843
Thallium Sir William Crookes 1861
Thorium Jons Jacob Berzelius 1828
Thulium Per Theodor Cleve 1879
Tin Known since ancient times ?
Titanium The Reverend William Gregor 1791
Tungsten Juan Jose
Fausto Elhuyar		 1783
Ununbium Peter Armbruster
Gottfried Munzenber		 1996
Ununhexium Scientists at Dubna, Russia 2001
Ununoctium Y. T. Oganessian et. al. 2006
Ununpentium Y. T. Oganessian et. al. 2004
Ununquadium Scientists at Dubna, Russia 1998
Ununseptium Not Yet Produced NA
Ununtrium Y. T. Oganessian et. al. 2004
Uranium Martin Heinrich Klaproth 1789
Vanadium Andres Manuel del Rio
Nils Gabriel Sefstrom		 1801
1830
Xenon Sir William Ramsay
Morris M. Travers		 1898
Ytterbium Jean Charles Galissard de Marignac 1878
Yttrium Johan Gadolin 1789
Zinc Known since ancient times ?
Zirconium Martin Heinrich Klaproth 1789


Chemical series of the periodic table

Alkali metals Alkali metals
Alkaline earth metals Alkaline earth metals
Lanthanides Lanthanides
Actinides Actinides
Transition metals Transition metals
Poor metals Poor metals
Metalloids Metalloids
Nonmetals Nonmetals
Halogens Halogens
Noble gases Noble gases

The periodic table of the chemical elements is a tabular method of displaying the chemical elements. Although precursors to this table exist, its invention is generally credited to Russian chemist Dmitri Mendeleev in 1869. Mendeleev intended the table to illustrate recurring ('periodic') trends in the properties of the elements. The layout of the table has been refined and extended over time, as new elements have been discovered, and new theoretical models have been developed to explain chemical behavior.

The periodic table is now ubiquitous within the academic discipline of chemistry, providing an extremely useful framework to classify, systematize and compare all the many different forms of chemical behavior. The table has also found wide application in physics, biology, engineering, and industry. The current standard table contains 117 confirmed elements as of October 16, 2006 (while element 118 has been synthesized, element 117 has not).

  1. Arrangement
  2. Periodicity of chemical properties
  3. Structure of the periodic table
  4. History of the periodic table
  5. A list of who discovered each element

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