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Dalton suggest Atomic Theory
circular, measurable, solid atoms -
Dmitri Mendeleev introduces Pireodic table and the Periodic Law
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James Clerk Maxwell suggests both electric and magnetic feilds surround the atom
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Wilhelm Roentgen discovers X-rays
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J.J. Thomson discovers the electron
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J.J. Thomson creates "plum pudding " model of the atom
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Nagaoka makes "Saturnian" of the atom
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Albert Einstein introduces the forever famous equation E=mc 2
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Ernest Rutherford discovers properties of the nucleus and suggests that electrons are located outside the nucleus
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Aston descovers isotopes
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Bohr changes the placement of the electron
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Cockcroft and Walton build first partical accelerator
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James Chadwick discovers proves the existance of the neutron
exact date unkown -
Enrico Fermi conducts first controlled splitting of the atom