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Learn about Rutherford 's atomic model , which proposed that the positive charge and most of the mass of an atom is concentrated in a nucleus, and the electrons revolve around it in circular orbits. Find out how he conducted his alpha scattering experiment, what he observed and what were the drawbacks of his model . What was Rutherford 's model of an atom? Rutherford 's model of an atom stated that: There is a positively charged centre in an atom called the nucleus . Nearly all the mass of an atom resides in the nucleus . The electrons (negatively charged particles) revolve around the nucleus in circular paths. Learn about the Rutherford atomic model , which has a nucleus and electrons, and the gold foil experiment that proved it. Find out the shortcomings of the model and how it differs from modern theories. Rutherford's nuclear model of the atom grew out of a series of experiments with alpha particles, a form of radiation Rutherford discovered in 1899. These experiments demonstrated that alpha particles "scattered" or bounced off atoms in ways unlike Thomson's model predicted.
