Periodic timeline By Ragingbacondonuts5 Dec 4, 1808 Dalton Model British Chemist Dalton made a model of an atom that looks much like a red rubber ball Period: Dec 5, 1808 to Dec 5, 2013 Atomic Models over the years Dec 6, 1897 Thomson Model british scientist J.J. Thomson made a model of an atom that looked like a muffin Dec 5, 1904 Nagaoka Model Dec 5, 1911 Rutherford Model Dec 8, 1913 Bohr Model Dec 5, 1932 Chadwick Model Nov 5, 2013 Modern Model