Science Quiz / Elemental Discoveries

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Follow in the footsteps of these giants of chemistry and identify the elements from a description of their first discovery or isolation.

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DiscoveryChemical ElementCredited Discoverer
Unrecorded discovery in antiquityUnknown
Extracted from pyrolusiteJohan Gottlieb Gahn; Humphry Davy
Extracted from wolframiteJose and Fausto Elhuyar
Extracted from pitchblendeMartin Heinrich Klaproth; Pierre and Marie Curie; Andre-Louis Debierne
Electrolysis of potashHumphry Davy
Electrolysis of quicklimeHumphry Davy
Prepared from urineHennig Brand
Extracted from 'fake copper'Axel Frederik Cronstedt
Found as a yellow line in the solar spectrumPierre Jansen and Joseph Norman Lockyer
Found as a natural decay product of a previous radioactive elementFriedrich Ernst Dorn; William Crookes; Marguerite Perey
Extracted from silicaJöns Jacob Berzelius
Extracted from beryl and emerald gemstonesLouis-Nicolas Vauquelin
Extracted from magnesiaHumphry Davy
Found in a molybdenum sample used in a cyclotronCarlo Perrier and Emilio Segre
Extracted from gadoliniteMany, many scientists!
DiscoveryChemical ElementCredited Discoverer
Extracted from samarskiteMarc Delafontaine; Paul-Émile Lecoq de Boisbaudran
Impurities in platinumWilliam Hyde Wollaston and Smithson Tennant; Karl Karlovich Klaus
Potassium reduction of sedative saltsHumphry Davy
Reactions with mercuric oxideCarl Wilhelm Scheele and Joseph Priestley
Produced by reacting strong acids with metalsParacelsus (observed) Henry Cavendish (identified)
Extracted from molybdenaCarl Wilhelm Scheele
Extracted from liquid argon samplesWilliam Ramsay and Morris Travers
Impurities in goldAntonio de Ulloa; Franz-Joseph Muller von Reichenstein
Obtained from hydrochloric acidCarl Wilhelm Scheele
Spectrum analysis of Norwegian zirconDirk Koster and Georg von Hervesy
Spectrum analysis of Dürkheim mineral waterRobert Bunsen and Gustav Kirchhoff
By removing carbon dioxide from exhaled airDaniel Rutherford
Liquefaction of air and nitrogenLord Rayleigh and William Ramsay
Found to cause blue colouration in glassGeorg Brandt
Found in burnt seaweedBernard Courtois; Antoine Balard

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