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Period: 410 BCE to
Atomic theory timeline.
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400 BCE
Democritus
Democritus comes up with his theory, all things are made up of microscopic particles and space. he also thought that atoms were indestructible. -
400 BCE
Democritus Atom
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John Dalton
All atoms are invisible and indestructible. Atoms of different elements are different, but atoms of the same elements sre the same. -
Billiard Ball Model
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J.J. Thomson
Atoms contain negatively charged particles, in a positively charged "soup". -
Plum Pudding Model.
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Ernest Rutherford
Atoms are made up of mostly space, with a small nucleus in the center. -
Rutherford's Atom
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Niels Bohr
Made a theory stating that energy is transferred only in only certain well defined quantities. -
Bohr Model
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Erwin Schrodinger and Werner Heisenberg
I have no idea what they did together, I know that Schrodinger developed an equation for describing the behavior of a particle in a field of force. I also know that Werner Heisenberg developed a quantum mechanics theory. -
Werner Heisenberg and Erwin Schrodinger
