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The first person to propose the idea that matter was not infinitely divisible.
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No smallest part of matter and different substances had different proporations of Fire water earth and rain.
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Chemical elements can't be destory or created just combined.
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It was a tax protest in the United States.
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created the law of constant composition
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Stated that all matter is made of atoms, atomes of a given element a unique weight and characteristic, and three kinds of atoms complex, compound, and simple.
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Temperature and pressure equals volume of gases containing the same number of atoms.
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Became part of the union.
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vestigated flows of particules through gases
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Chmicals spontaneously decompose and give off pentrating rays.
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Discovered two new elements that helped discoveries on radiation.
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Suggested that atoms were built on more a fundamental unit.
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quantum nature of energy
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E=mc^2
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Describing the atom as having a central positive nucleus surrounded by negative orbiting electrons.
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Made electrons have an electrical charge
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The Titanic sunk when it an ice berg on it's way from England to New York.
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Atoms contains in its necleus a number of positive nuclear charges that equals to atomic number on the periodic table.
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Electrons travel in discrete orbits around the atom's nucleus.
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describe the behavior of electrions
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Electrons move as a wave in some conditions
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Was the decade that preceded World War I and it was an economic depression.
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The position and engery of a particle are only a certain amount.
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Found neutrons
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An attack on the United States by Japan which brought the U.S. into WWII.
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Allied invasion during World War II.
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Was shot down in a parade that he was going with his wife.
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Neil Armstrong was the first person to set foot on the moo.
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It was the most destructive terroism on american soil until 9-11 by taking 168 live and of that was 19 killed under the age of 6.
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A plane was flown into the world trade center.
