Questions and Answers
Who introduced a new form of the ancient Greek idea of atoms at the beginning of the nineteenth century?
John Dalton
Who discovered the electron and suggested the 'plum pudding' model of the atom in 1897?
J.J. Thomson
Who suggested that electrons orbit the atomic nucleus like planets round the Sun in 1911?
Ernest Rutherford
Who modified Rutherford's model by introducing the idea of energy levels in 1914?
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What is the charge of a neutron?
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