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Antoine Lavoisier
Discovery that Mass remains the same in different forms -
Joseph Louis Proust
Discovered matter is neither created nor destroyed. -
John Dalton
Created the first atomic theory. Made the solid sphere model of an atom. -
Michael Faraday
Discovered electrolysis, which is the splitting of molecules with electricity. -
Henri Becquerel
Discovered that some chemicals spontaneously decompose and give off very penetrating rays. -
J.J. Thomson
Detected electrons using cathodrayed tube. The inventor of the "plum pudding" model. -
Ernest Rutherford
Discovered that the atom is made up of empty space. Also studied radiation emitted from uranium and thorium. Original inventor of the Planetary model. -
Marie and Pierre Curie
Marie discovered radioactivity. Pierre discovered polynium and radium. -
Max Planck
Used the idea of quanta to explain hot glowing matter. -
Albert Einstein
Published the famous equation e=mc2. -
Robert Milikan
Determined the charge and the mass of an electron. Also had interesting work on the photoelectric effect. -
Niels Bohr
Discovered electrons exist in energy levels. Modified Rutherford's planetary model. -
Louis Debroglie
Discovered that electrons had a duel nature. They are similar to both particles and waves. -
Erwin Schrodinger
Made an atomic model based on probability. Discovered the electron cloud. -
James Chadwick
Discovered nuetrons. -
Glen T. Seaborg
Synthesized 6 transuranium elements and suggested a change in the layout of the periodic table.