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In the standard interpretation of quantum mechanics, the quantum state is the most complete description that can be given to a physical system.
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A Greek philosepher who believed that if you cut an Atom enough it canot be split any more.
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His Theory States:
1. Atoms are smallparticles that canot be created divided or distroyed.
2. Atoms of the same element are identical, and atoms of diferent Elements are Different
3.Atoms join together to make new substances -
thomson Discovered that there are small particles inside Atoms. This means that atoms can be devided into smaller parts
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Thomsons student Ernest Rutherford decided to test Thomson's Theory by aiming positivly charged particles at a sheet of gold and seeing how they deflect of it. most of the particals went strait through.
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rutherford proposed that the center of and Atom is extreamly dence, + charged part called the nucleus
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Bohr studied how atoms react to light. his study led him to decide that Electrons move around the Nucleus in certain paths.
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Aristotle disagreed with the prevailing theories of the time. He wan not able to see how atoms could stay in perpetual motion in a void. He developed a theory that was based on the four elements.
