Rhenium (1925) discovered by W. Noddack, O. Berg and Ida Tacke in Berlin, Germany

Hafnium (1923) discovered by D. Coster and G.C. von Hevesey in Copenhagen, Denmark

Lutetium (1907) discovered by G. Urbain in Paris, France, and, independently, by C. James at the University of New Hampshire, USA

Radon (1900) discovered by Friedrich Dorn

Neon (1898) discovered by William Ramsay and Morris Travers

Argon (1892) discovered by William Ramsay

Germanium (1886) discovered by Clemens Winkler
Dysprosium discovered by P.E. Lecoq de Boisbaudran in Paris, France
Gadolinium isolated by P.E. Lecoq de Boisbaudran in Paris, France

Balmer (1885) discovered spectral lines of hydrogen
Neodymium discovered by Baron Auer von Weisbach

Gadolinium (1880) discovered by J.C. Galissard in Geneva, Switzerland

Samarium (1879) discovered by P.E. Lecoq
Scandium discovered by L.F. Nilson

Ytterbium (1878) discovered by J.C.G. de Marignac in Geneva, Switzerland

Gallium (1875) one of the elements predicted by Mendeleev in 1871,

is discovered by P.E. Lecoq de Boisbaudran in Paris, France

(1871) Molybdenum discovered by P.J. Hjelm in Uppsala, Sweden

the periodic table of elements (1869)

Indium (1863) discovered by F. Reich and H. Richter in Freiberg, Germany

Rubidium (1861) discovered by Robert Bunsen. Caesium discovered by Robert Bunsen
Thallium discovered by W. Crookes in London

Terbium (1843) discovered by C.G. Mosander in Stockholm and was named after the Swedish town of Ytterby

Erbium (1842) discovered by C.G. Mosander in Stockholm, Sweden

Lanthanum (1839) discovered by C.G. Mosander in Stockholm, Sweden

Thorium (1829) discovered by J.J. Berzelius in Stockholm

Silicon (1824) discovered by J.J. Berzelius in Stockholm, Sweden

Lithium (1821) isolated by W.T. Brande

Cadmium (1817) discovered by Friederich Strohmeyer.

Lithium discovered by J.A. Arfvedson in Stockholm, Sweden
Selenium discovered by J.J. Berzelius in Stockholm, Sweden

Jöns Jakob Berzelius (1813) developed the system of chemical notation, in

which each element is represented by the initial letter or pairs of letters from their names

Ruthenium (1808) discovered by J.A. Sniadecki at the University of Vilno, Poland

The English chemist Humphry Davy (1808) discovers barium, strontium, calcium and isolates magnesium

He also discovers boron at the same time as the French chemists Joseph-Louis Gay-Lussac and Louis-Jacques Thénard

Potassium (1807) discovered by Sir Humphrey Davy in London

Sodium (1806) discovered by Humphry Davy

Praseodymium (1805) discovered by Baron Auer von Welsbach in Vienna, Austria

Osmium and Iridium (1803) discovered by Smithson Tennant in London, England
Rhodium and Palladium discovered by W.H. Woollaston in London, England

Tantalum (1802) discovered by A.G. Ekeberg in Uppsala, Sweden

Niobium (1801) discovered by C. Hatchett in London, England
Vanadium discovered by A.M. del Rio, Mexico City

Yttrium (1794) discovered by J. Gadolin in Abo, Finland

Titanium (1791) discovered by Rev. William Gregor in Cornwall, England

Uranium and Zirconium (1789) discovered by M.H. Klaproth in Berlin, Germany

Tellurium (1783) discovered by Baron Franz Josef Mu¨ller von Reichenstein in Sibiu, Roumania
Tungsten isolated by J.J. and F. Elhuyar in Vergara, Spain

Chromium (1780) is discovered by N.L. Vanquelin in Paris, France

priestly und scheele entdeckten unabhängig voneinander den sauerstoff (1774)

Manganese (1774) discovered by J.G. Grahn in Stockholm, Sweden

Nitrogen (1772) discovered by Daniel Rutherford

Magnesium (1755) recognised by Joseph Black in Edinburgh, Scotland

von den schweden cronstedt und bergmann wird das nickel entdeckt (1751)

Cobalt (1735) discovered by G. Brandt in Stockholm, Sweden

Hennig Brand (1667) accidentally discovers the element phosphorus during an experiment with urine,

but he keeps it secret and Robert Boyle later discovers and describes the element