Atomic Theory Webquest

  • 322

    Aristotle

    Aristotle
    Aristotle provided us with knowledge of natural science including Physics, which gives a vast amount of information on astronomy, meteorology, plants, and animals.
  • 450

    Democritus

    Democritus
    Democritus discovered that matter was made of small particles , which he called atoms, floating in a void.
  • Antoine Lavoisier

    Antoine Lavoisier
    AFrench nobleman in the histories of chemistry and biology.He named both oxygen (1778) and hydrogen (1783)
  • John Dalton

    John Dalton
    While studying the nature and chemical makeup of air in the early 1800s, he was the first scientist to explain the behavior of atoms in terms of the measurement of weight.
  • Joseph Louis Proust

    Joseph Louis Proust
    Proust’s largest accomplishment was creating elements from water. He put hydrogen in science that was disproving Berthollet with the law of definite proportions, which is sometimes also known as Proust's Law.
  • Michael Faraday

    Michael Faraday
    English scientist who contributed to the fields of electromagnetism and electrochemistry. His main discoveries include those of electromagnetic induction, diamagnetism and electrolysis.
  • Marie and Pierre Curie

    Marie and Pierre Curie
    Marie and Pierre Curie discovered the new element that came to be called “radium,” aa important element in chemistry and physics.
  • Henri Becquerel

    Henri Becquerel
    Antoine Henri Becquerel was conducting an experiment which started with the exposure of a uranium-bearing crystal to sunlight. Once the crystal sat in the sunshine for some time, he put it on a photographic plate. As he had anticipated, the crystal produced its image on the plate. Becquerel realized that the absorbed energy of the sun was being released by the uranium in the form of x-rays. (Radioactivity)
  • J.J. Thomson

    J.J. Thomson
    Discovery of the electron in 1897 showed us that an atom can be split into smaller parts and pieces.
  • Ernest Rutheford

    Ernest Rutheford
    Through the Gold Foil Experiment he discovered that when Gold Atoms were deflected off of tin foil that some of them must have bounced because of a dense center in the atoms or known as the nucleus. Basically, in turn, he discovered the nucleus.
  • Max Planck

    Max Planck
    German theoretical physicist Max Planck discovered an equation that explained the results of these tests. The equation is E=Nhf, with E=energy, N=integer, h=constant, f=frequency. In determining this equation, Planck came up with the constant (h), which is now known as "Planck's constant. ( Quantum )
  • Albert Einstein

    Albert Einstein
    Albert Einstein published a number of scientific works that changed physics forever. The best known of these,now known as the Special Theory of Relativity, established Einstein and led to his General Theory of Relativity, one of the starting points of modern physics.
  • Robert Millikan

    Robert Millikan
    Robert Millikan was an American experimental physicist, and Nobel laureate in physics for his measurement of the charge on the electron and for his work on the photoelectric effect
  • Neils Bohr

    Neils Bohr
    Very important man, Neils Bohr, discovered that electrons in atoms are arranged according to the energy levels.
  • James Chadwick

    James Chadwick
    Chadwick made a fundamental discovery in nuclear science: he proved the existence of neutrons - elementary particles devoid of any electrical charge