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He proposed the existance of an ultimate particle tha the called an " atomos."
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discovered the law of Definte Proportions or the law of Constant Composition. Which means that when something is made it will be made the same the way anytime u make that substance
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Discovered the law of Definite Proportions. This states that every substance is made up of the same combinations of elemnts
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Discovered the Law of Multiple Proportions. this law stated that the masses of one element that combined with a fixed mass of another element in different compounds are in simple, whole number ratios
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Identified the electron and classified them as being negativly charged. also proposed the plum Pudding model of tha atom
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He determined the unit charge of the electron
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Published the atomic theroy that tht atomn has a positvley charged center neucles surrounded by negative electrons
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Discovered how to calculate the electrons energy levels
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Proposed that electrons could act as waves in certain situations
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He developed the Shrodinger Equation, This can be used to predit how atoms and molocules react
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He discovered the Heisenburg Uncertanity Principle, This stated that a moving particle cannot be measued with high percison
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He confirmed the existrance of the nuetron
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He belived in the four elements; water, windm earth, and fire. He also believed that matter could be cut in half infinite times
