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Period: 406 to 406
Democritus Founded Aom
Democritus asked, " If you break matter in half, then in half again, how many breaks would you have to make before you can break it no further? -
John Dalton
Dalton's atomic theory said that elements consisted of tiny particles called atoms. -
Period: to
Ernest Rutherford
Rutherford discovered Alpha and Beta rays. ruthrford also conducted the famous Gold Foil Experiment. -
JJ Tomson
Discovered the electron in an atom. -
Robert Millikan
Millikan conducted an experiment that showed thata charge on a droplet of water from his experience alsways had a small, but finiye value. -
Niels Bohr
Made the model of the atom that is commonly used today and is taught today. -
Werner Heisenberg
Heisenberg created matrix mechanics, which is the first version of quantum mechanics. -
Erwin Shrodinger
Shrodinger made a model of the atom min 1926, Shrodinger alsomade the wave function. -
James Chadwick
Discovered basic Neutron by bombarding beryillium atoms with alpha particles.