-
Known since ancient times
-
Known since ancient times
-
The first references to true alchemy, with its idea of transmutation seems to be from the third and fourth century A.D. Greco-Roman Egypt.
-
-
Hening Brnad, German alchemist
-
-
1661 Boyle defined an element as a substance that cannot be broken down into a simpler substance by a chemical reaction
-
Cobalt was discovered by Georg Brandt, a Swedish chemist, in 1739.
-
Nickel was discovered by the Swedish chemist Axel Fredrik Cronstedt in the mineral niccolite (NiAs) in 1751.
-
Magnesium was discovered by Sir Humphrey Davy at 1755 in England
-
Henry Cavendish
-
Carl Wilhelm Scheele discovered fluorine and Henri Moissan (1866)found a way to isolate it, 15 years after it’s initial discovery.
-
Daniel Rutherford discovered nitrogen in 1772 and called it noxious gas or fixed air
-
Oxygen was discovered in 1774 by Joseph Priestley in England. Joseph Priestley and Carl Wilhelm Scheele both independently discovered oxygen, but Priestly is usually given credit for the discovery as he published earlier.
-
Carl William Scheele at 1774 in Sweden
-
Carl Welhelm Scheele
-
Chromium was discovered in 1780 by French chemist Nicolas Louis Vauquelin in Paris.
-
Johan Gadolin
-
Martin Heinrich Klaproth
-
Antoine Lavoisier's pioneering chemistry textbook Traité Élémentaire de Chimie, published in Paris in 1789, lists carbon as an "oxidizable and acidifiable nonmetallic element" Carbon is known since ancient times.
-
Adair Crawford
-
Titanium was discovered by William Gregor at 1791 in England.
-
Beryllium was discovered by Nicholas Louis Vauquelin in 1797
-
Vanadium was discovered in 1801 by the Spanish scientist Andres Manuel del Rio.
-
Charles Hatchett
-
Anders Gustaf Ekenberg
-
William Hyde Wollaston
-
William Hyde Wollaston
-
The discovery of sodium is attributed to a British scientist named Humphry Davy in 1806
-
Potassium was discovered by Sir Humphrey Davy at 1807 in England
-
Joseph Louis Gay-Lussac and Louis Jacques Thénard (30 June 1808)
-
Calcium was discovered by Sir Humphrey Davy at 1808 in England
-
Lithium was discovered by Johan Arfvedson in 1817 in Stockholm, Sweden
-
Jöns Jacob Berzelius 1817
-
Friedrich Strohmeyer
-
Jons Jacob Berzelius 1824 (Sweden)
-
Aluminium was discovered by Hans Christian Oersted at 1825 in Denmark.
-
Antoine-Jérôme Balard 1826
-
Karl Karlovich Klaus
-
Robert Bunsen
Gustav Kirchhof -
Ferdinand Reich
Hieronymus Theodor Richter -
Pierre Janssen was a French astronomer who discovered helium in 1868
-
Dmitri Mendeleev, a Russian chemist, was the first scientist to make a periodic table much like the one we use today
-
Paul-Émile Lecoq de Boisbaudran 1875
-
Scandium was discovered by Lars F. Nilson in 1879, in Uppsala, Sweden
-
Clemens Winkler 1886
-
Argon was discovered by Sir William Ramsay, Lord Rayleigh at 1894 in Scotland
-
Neon was discovered in 1898 by William Ramsay and Morris Travers at University College London
-
Sir William Ramsay
Morris M. Travers 1898 -
Carlo Perrier
Emilio Segrè -
In 1940, Glenn Seaborg artificially produced heavy mass elements such as neptunium. These new elements were part of a new block of the periodic table called ‘actinides’.
-
Jābir ibn Hayyān (known as "Geber" in Europe) introduced a new approach to alchemy, based on scientific methodology and controlled experimentation in the laboratory, which is considered the start of chemstry.