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He discovered that most of the mass of an atom and all of thepositivecharge are in the centre. Most of the atom is 'empty' space, occupied by electrons, which orbit thenucleus.
Gold Foil Experiment


He shot streams of alpha particles (Helium nuclei) through a thin gold foil and discovered most of them passed through and a minority deflected back. As alpha particles are positively charge, that means the nucleus of atoms are also positive as it deflects alphas away. (pos-pos,repeland neg-pos, attract)

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12y ago

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