atom time line mode By sammywhammy757 Nov 6, 2012 democratus Nov 6, 2012 John dalton Nov 6, 2012 J.J Thompson Nov 6, 2012 ernst rutherford Nov 6, 2012 Hantaro Nagaoka Nov 6, 2012 Neils Bohr Nov 6, 2012 Werner Heisenberg & Erwin Schrodinger Nov 6, 2012 James Chadwick Nov 6, 2012 James Chadwick