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john daltonJohn Dalton was born September 6, 1766 and died on July 26, 1844. He says that all matter comes from atoms and cannot be creatred or destroyed.
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jj thomsonJ.J. Thompson was born on December 18, 1856 and died on August 30, discovered the electron and that there were smaller particles inside of the atom.
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Ernest RutherfordRutherford was born on Aug 30, 1873 and died on October 19, 1937. He discovered that an atom had a central nucleus and the electrons orbit around it.
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niels bohrWas born October 7, 1885 and died November 18, 1962. He discovered that electrons orbit around the nucleus on a path that does not cross with other electrons.
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ChadwickJames Chadwick was born on October 20, 1891.In 1932 he discovered the existence of the nucleus neutral of eletrical charge.
