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John Dalton
All matter is composed of atoms. He pictured atoms as indestructable particles with no internal structure. (Solid Sphere Model) -
J.J. Thomson
He discovers the electron, a negaticely charged particle, and creates "Plum-Pudding" model. -
ALbert Einstein
Theory of relativity, which laid basis for atomic energy release. -
Robert Millikan
Discovered an accurate determination of charge of an electron and that all electrons have the same charge. -
Ernest Rutherford
Discovered the nucleus is dense with positive charge. (Planetary Model) -
Neils Bohr
Electrons orbit Nucleus. (Planetary Model) -
Luis de Broglie
Came up with general theory for electrons: "Wave Mechanics." -
Werner Heisenberg
Created Theory of Quantum Physics. Use matrix equations to determine velocity and position of electrons. -
Erwin Schödinger
Discovered how to estimate where electrons are in an atom. -
James Chadwick
Discovers the nuertron, a neutral charged particle in the nucleus. -
Wolfgang Pauli
Discovered the neutrino, a massless and neutral particle that carries off energy in radioactive disingration. Pauli exclusion principle-Structure in terms of energy levels. (Nuclear Shell Model) -
Modern Model
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Democritus
A greek phiosopher that figured out that all things are composed of atoms. (Origin of Atomic Theory)
