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Dalton came up with the Atomic Theory
Dalton came up with the Atomic Theory somewhere in the early 1800s. The theory is as follows:
1. All matter is made of atoms. Atoms are indivisible and indestructible
2. All atoms of a given element are identical in mass and properties
3. Compounds are formed by a combination of two or more different kinds of atoms
4. A chemical reaction is a rearrangement of atoms.
more info at Dalton's Theory -
Thompson Determines That Electrons are a part of Cathode Rays
Thompson then concluded that electrons were a part of atoms. -
Thompson Wins the Nobel Prize
J.J. Thompson wins the 1906 nobel prize. -
Rutherford Performs His Gold Experiment
Rutherford shot Alpha Rays through a sheet of gold foil to try and understand an atom better. What he found was that most of the atom's mass is in it's nucleus. -
Bohr Joins Rutherford
Bohr joins Rutherford in his resaerch, claiming that his theory in incorrect. According to laws of physics, the atom should collapse on itself based on Rutherford's theory. -
Bohr publishes his own theory
Bohr publishes his theory about the atom model, looking to Planck's Quantum Theory for a guide. -
Bohr wins the Nobel Prize in Physics