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Dalton: Sphere Model
The first atomic model. Dalton performed experiments using various chemicals that showed that matter seemed to consist of lumpy particles. -
Thomson: Plum Pudding Model
He felt the electrons are surrounded by a positive charge in order to block out their negative charge. Looked like a cloud of positive charge. -
Rutherford: The Nuclear Model
His model showed that an atom was mostly empty space with the electrons revolving around a positively charged nucleus, like the planets orbit the sun. His model at the time was revolutionary, until later proven something was wrong with it. -
Bohr: The Bohr (Planetary) Model
A planetary model where negatively charged electrons orbit the small positively-charged nucleus. His model atom appeared too simple to describe the heavier elements. -
Schrodinger: Quantum Mechanics Model
His model was based on the particle waves and used equations to tell the likelihood of discovering an electron at a certain position. It did not tell the exact path of the electron, but predicted the likelihood of the location of the electron. -
Today
Thanks to all of these incredible and driven people we now have a greater understanding of things like atoms. We get to learn about them in school and see that it took patience and determination to get to where we are now and have the information that we do.
