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He believed that the theory of matter consists of invisible particles called atoms and that atoms of a given element are al identical and can neither be created nor destroyed.
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He discovered electrons. Then he found out that atoms are made up of a proton, neutron, and electons. He then realized that an atom is not invisible
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He discovered that an atom is made up of a central positive nucleus. The atom is surrounded by electrons that are negatively charged.
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His discovery was close to Rutherfords. He discovered that electrons orbit the outside of the nucleus in a circular motion. Electrons also form different shells around the atom. The amount of energy the atom releases is determined by the size of the orbit.
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He discovered neutrons and found that their purpose is to be in the nucleus and only the nucleus with the protons to stabilize the nucleus. He also discovered that neutrons have a neutral charge.
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Different scientists haven't discoved anything else besides that a negative atom is attracted to a positve atom. They are also discovering more elements to add on the periodic table.
