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Atoms-Democritus discovered that all mater consists of atoms, atoms are indestructible, atoms are eternal and are always moving, and atoms are homogenous. He lived from 460 bc to 370 bc.
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Atom-Dalton found that a given element has a certain shape and size and that compounds are made of two or more elements. He lived from september 6 1776 to july 27 1844.
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Atom-Rutherford used gold foil to find out that atoms are made of mostly empty space. He lived from August 30, 1871 to October 19, 1937.
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Atom-Thomson discovered electrons using a cathode ray tube. He proposed plum pudding model. He was born december 18 1856 and died on august 30 1940
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Atom-Planck started the idea of the quantum theory. He was born in april 23 1858 and died on october 4 1947.
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Atom-Schrodinger made the Schrödinger's wave. He was born august 12 1887 and died on january 4 1961.
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Atom-Bohr found out that the atom has many different shells. He was born october 71885 and died on november 18 1963
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Atom-Chadwick discovered the nuetron. He lived from october 20 1891 and died in july 24 1974.
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Atom-Aston invented the mass spectograph. He was born september 1 1877 and died on november 20 1975
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Atom-Hiesenberg inveented the Heisenberg Uncertainty Principle. He was born in 5-Dec-1901 and died on 1-Feb-1976.
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Atom-Dirac invented the priciples of quantim mechanics. He was born on 8-Aug-1902 and died on 20-Oct-1984.
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Atom-Broglie discovered the wave nature of electrons. Her was born in 15-Aug-1892 and died in 19-Mar-1987.