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Disagreed with most scientists, and believed that atoms didn't exist. He believed everything was made up of combinations of earth, water, air, and fire.
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First model of the atom; a ball. Unlike Aristotle, he knew atoms existed.
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Started conversation on what the atom was, and can be associated with the creation of the law of conservation of mass.
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Created atomic theory of matter, which included fidings from Democritus. All matter is made of atoms that when combined with different elements created compounds.
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He made many discoveries in the field of radioactivity that would lead to the perfection of the atomic model in later years.
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Discovery of electron lead to the ball model to becoming a "plum pudding" model.
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Expanded on Becquerel's work on radioactivity to create the dot diagram model, which showed the electrons.
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Creation of quantum theory would lead to use of energy in the atomic model.
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Inspired by J.J. Thomson's finding of the electron, he proved that the electron is much smaller than the rest of the atom
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Feeling the need to improve J.J. Thomson's model, he created a model that had a posotive nucleas with electrons surrounding it.
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Bohr created a new model based off of his teacher Rutherford's model. The new model contained energy levels. He used Planck's ideas to creare quantum mechanics.
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Worked with Bohr to find out that atomic number correlated with number of protons.
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Changed quantum mechanical model of the atom by calculating probability of an electron being a certain distance from the nucleas.
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A scientist who shares his name with TV's favorite drug lord proposed that the exact distance of an electron from the rest of the nucleas wasn't exact.
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Curious about a difference in mass and number of protons, James Chadwick discovers the neutron.
