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Daltons model of the atom
Proposed that all mater is composed of vey small things (atom). -
Thomsons Cathode Ray Experiment
deflected cathode rays with an electrical field and the rays bent toward a positive pole, meaning the are negatively charged -
Rutherford gold foil experiment
Placed a sheet of gold foil infont of beam particles and shot the beam, once it hit the foil particles deflected of it. discovering every atom had a positively charged nucleus. -
Milikans Oil Drop Experiment
He suspended tiny droplets of oil in an electrical field and got an accurate measure of the charge -
Bohr Model
Illustrated how electrons can orbit around the nucleus, and move from higher to a lower orbit and energy was produced. -
The Quantum Mechanical model
The electons were not located along circuits but just somewhere in a spherical zone. Because we cant know the exact location and velocity at the same time. -
Chadwick discovery of the neutron
This addition complete the structure of the atomic model. -
Thomson Plum pudding model
Electrons are embedded into a spherical positively charged cloud.
