13 Great Discoveries of Chem

  • Oxygen

  • Period: to

    Electricity transforms chemicals

  • Atomic theory

  • Atoms combine into molecules

  • Synthesis of urea

  • Chemical structure

  • Atoms have signatures of light

  • Period: to

    Periodic table

  • Period: to

    Plastics

  • Period: to

    Radioactivity

  • Electron

  • Electrons for Chemical bonds

  • Fullerenes