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Alchemists searched for the Philosophers stone, which had thee ability to transform base materials like Copper or lead,into valuable substances like gold.
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stated that all matter is made up of atoms.
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Provided the method of gathering scientific facts, which proved as the basisfor all scientific work.
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Provided the formula for the conservation of matter in Chemical reacions, and also distinguished between an alement and a compound.
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Formulated the Couloumb's law, which states that the force between two electrical charges is proportional to the product of the charges and inversity proportional to the square of the distance between them.
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Formed the atomic theory,which states that all matter is composed of tiny,indestructable particles called atoms that are all alike and have the same atomic weight.
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Created the Crookes tube and demonstrated that cathode rays travel in straight lines and produce phosphorence and heat when they strike certain materials.
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Discovered X-Rays whuile expermenting with cathode-ray tubes.
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Discovered radioactivity when he investigated uranium and other radioactive substances.
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Discovered radium and polonium when they started to investigate radioactive substances
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Discovered the electron and developed the plum pudding model of the atom
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Originated the quantum theory
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Postlate that light was made up of different paticles that, in addition to wavelike behavior, demonstrate certain properties unique to particles. He also brought forth the theory of relativity
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Found out the electric charge of the electron
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Used the result of his gold foil experiment to state that all the mass of an atom were in a small positively charged ball at the center of the atom.
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Stated that the electrons moved around the nucleus in successively large orbits. He also preseted the Bohr atomic model which stated that atoms absorb or emit radiation oly when the electrons abruptly jump between allowed, or stationary states.
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Introduced the first detector of alpha particles and other radiations.
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Introduced the Shroedinger equation, a wave equation that describes the form of the probability waves that govern the motion of small particles and how these waves are altered by external influences.
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Discovered the neutrally charged neutron
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Discovered nuclear fission, in which the nucleus of an atom breaks up into two seperate nuclei, while experimenting with uranium
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Worked with Auto Hahn to discover uranium fission
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Isolated and idenified elements heavier than Uranim, and in the process added elements number 94-102, and 106
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Brought forth the idea of "quarks", little bits of matter which when used kind of like building blocks, serve to explian some complex chemical substances