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Proposed a mechanical universe with small solid masses in motion. His contribution led to the understanding that atoms or particles move and are not stationary.
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Dalton stated that matter Consists of invisible atoms, they arrange in different combinations to make different compounds. He was the originator of atomic theory
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Atoms have electrons. Electrons are much smaller than atoms, atoms are not indivisibile becasue they're made up of electrons which are much smaller.
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Published the famous equation E=mc^2, this contributed to the world because it was a major proof that light had particle characteristics and led to the acceptance of quantum mechanics as a model.
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Discovered that atoms had a nucleas, all the positive charge in an atom was concentrated in the centre, Atoms were pretty much empty space.
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Niels Bohr stated that the Nucleas in the middle, but instead of the electrons being around the place they orbit the nucleas just like how the planets orbit around the sun
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Ernest Rutherford discovered Protons, he contributed to the atomic theory by creating an atomic model and describes it tiny, dense, positively charged core called a nucleas.
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Lays the foundation of quantum wave mechanics. he stated that electrons didnt orbit around the nucleus but more like hyper active flies that buzzed around the atom sketching out different shapes. This allowed people to build upon his theory, making the atomic theory even more accurate
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Founder of the Neutron, this lead into the creation of an accurate model of an atom.
