________ suggested atoms were spheres of positive charge with tiny negative electrons stuck in them like fruit in a plum pudding- the plum pudding model.
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2
Niels Bohr
________ said that electrons orbiting the nucleus do so at certain distances called energy levels.
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3
Rutherford
________ replaced the plum pudding model with the nuclear model.
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4
1804
In ________, John Dalton agreed with Democritus that matter was made up of tiny spheres that couldnt be broken up, but he reckoned that each element was made up of a different type of atom.
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5
nuclear model
The ________ that resulted from the alpha particle scattering experiment was a positively charged nucleus surrounded by a cloud of negative electrons.
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