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Dalton's Solid Sphere Model
Dalton begins to reintroduce the idea that atoms exist. He creates a model with wooden spheres to explain the structure of an atom -
Period: to
The Timeline of the ATOM
Created by Oliver Wylie -
Thomson's Plum Pudding Model
Thomson made a model of the atom that suggested that negatively charged particles were embedded in a positively charged substance. The model became known as the plum pudding model because it looked like a big pudding with blobs in it. -
Rutherford's Nuclear Model
Rutherford begins experimenting with a new model of the atom which suggests that the atom has a nucleus. The nucleus is very dense and holds a positive charge -
Bohr's Planetary Model
This model shows a positively charged nucleus being orbited by small electrons. Bohr's model is similar to the way that planets orbits the sun -
Schrodinger's Quantum Mechanics Model
Schrodinger used the Bohr atomic model and applied quantum mechanics to the idea. This model showed the likelihood of electrons being in certain locations at certain points in time. -
Today
Today we know a lot more about the atom and we have much better technology so there isn't as much guesswork. Some scientists devote their whole careers to studying and experimenting with atoms.