Ten Discoveries in Chemistry

  • Oxygen Discovered

    Joseph Priestly first discovered oxygen
  • Electricity Transforms Chemicals

    Humphry Davy
  • Atomic Theory

    John Dalton discovered the Atomic Theory
  • Atoms Combine into Molecules

    Italian chemist Amedeo Avogadro finds atoms in elements form into molecules
  • Synthesis of Urea

    Friedrich Woehler accidentally synthesizes urea from inorganic material
  • Chemical Structure

    Friedrich Kekule figures out the chemical structure of benzene
  • Radioactivity

    Marie and Pierre Curie discover and isolate radioactive materials
  • The Electron

    J.J. Thomson discovers that the negatively charged particles
  • Electrons form Chemical Bonds

    Niels Bohr publishes his model of atomic structure
  • Periodic Table

    Dmitry Mendeleyev