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Believed everything was made of water
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Believed that matter could be divided into smaller and smaller pieces until the smallest piece was reached, the atom. First think of the atom
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Believed that everything was made of water, fire, earth, or air.
His ideas were more accepted than Democritus' -
Believed that Democritus' ideas were correct
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performed expirements
Theory of matter
atoms are indivisible and indestructible
atoms of the same element are identical
different elelments have different atoms
different elements combine to make compounds
atoms cannot be created or destroyed -
Discovered radioactivity
4 expirements "uranium expirements" -
Discoverd the electron
Cathode ray tube expirement
Plum pudding model -
Find charge and mass of electron
oil drop expirement -
Discovered nucleus and protons
Gold foil expirement -
Discovered electrons path
Bohr Model -
Discovered isotopes
mass spectograph -
Model predicted electron's position
electron cloud -
Discovered the neutron