Rutherford made a series of discoveries about the nature of atoms and, working with colleagues Hans Geiger and Ernest Marsden, presented a planetary model of the atom in 1911. In it, he laid out ...

Scientists changed the model so that it could explain the new evidence. 1909-1911 Rutherford (and Geiger and Marsden) Some positively charged particles fired at gold foil bounced back when they ...

The modern atomic model is the result of many scientists building on each other's work. 1909 – 1911 Rutherford (and Geiger and Marsden) Some positively charged particles fired at gold foil ...