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Oxygen
Discovered by Joseph Priestly. -
Atomic Theory
John Dalton discovered the atomic theory. -
Electricity
Humphry Davy melted pot ash and ran wires from his biggest battery to form pure potassium. -
Molecules
Joseph Louis Gay-Lussac discovered molecules. -
Synthesis of Urea
Friedrich Wohler discovered synthesis of Urea. -
Atoms have signatures of light
Robert Bunsen discovered that certain elements, when mixed with fire, emitted different colors. -
Chemical structure
Friedrich August Kekulé discovered chemical structure. -
Periodic Table of elements
While preparing for his class, Dimitri Mendeleev, discovered the periodic table. -
Radioactivity
Henri Becquerel discovered radioactivity. -
Electrons
Discovered by Joseph Thompson -
Plastic
Discovered by Leo Baekeland. -
Chemical bonds
Gilbert Lewis discovered that electrons form chemical bonds. -
Fullerenes
Discovered by Richard Smalley.