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-said that all matter is made up of atoms
-formed the atomic theory
-stated 5 principles -
-discovered that uranium containing materials produced x-ray radiation
-won nobel prize in 1903 -
-discovered radium and polanium
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-discovered the electron
-made the plum-pudding model
-used the cathode ray experiment -
-discovered the charge of an electron and its mass
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-stated that all mass of an atom were in a small positively charged ball at the center of the atom
-he used the gold foil experiment -
-said that electrons moved around in a large orbit
-he used the planetary model -
-probability area an electron may be located
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-discovered the neutrally charged neutron
