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Details of Rutherford's Scattering Experiment narrow beam of & particles, all of the structure of the atom. probe the A thin metal foil was placed in the path of the a particles Scattered by the metal fail were constant could be moved around at a the be am on the metal foil. • Used a container Result of Rutherford Seattering 3 0 Path of ABC DE Rutherford Scattering Most of the atom's The nucleus is positively charged because a particles which pass hear a fixed nucleas A. De Ee same kinetic energy. beam. detected by a detector which distance from the point of impact of mass is concentrated in a small region, the nucleus, at rt repels a particles in an evacuated nucleus • From this experiment, Rutherford results were: • The majority of a-particles went straight through (A) o This suggested the atom is mainly empty space • Some a-particles deflected through small angles of < 10° (B) o This suggested there is a positive nucleus at the centre (since two positive charges would repel) • Only a small number of a-particles deflected straight back at angles of > 90° (C) o This suggested the nucleus is extremely small and this is where the mass and charge of the atom is concentrated o It was therefore concluded that atoms consist of small dense positively charged nuclei ● Since atoms were known to be neutral, the negative electrons were thought to be on a positive sphere of...
iOS User
Stefan S, iOS User
SuSSan, iOS User
charge (plum pudding model) before the nucleus was theorised • Now it is known that the negative electrons are orbiting the nucleus. Collectively, these make up the atom a source- narrow beam of incident a particles the thin metal foil fluorescent screen centre of the evacuated metal container ▲ Figure 1 Rutherford's a-scattering apparatus observe microscope a tom.
Rutherford Scattering
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A brief notes for electricity and Coulomb's Law in Physics
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Details of Rutherford's Scattering Experiment narrow beam of & particles, all of the structure of the atom. probe the A thin metal foil was placed in the path of the a particles Scattered by the metal fail were constant could be moved around at a the be am on the metal foil. • Used a container Result of Rutherford Seattering 3 0 Path of ABC DE Rutherford Scattering Most of the atom's The nucleus is positively charged because a particles which pass hear a fixed nucleas A. De Ee same kinetic energy. beam. detected by a detector which distance from the point of impact of mass is concentrated in a small region, the nucleus, at rt repels a particles in an evacuated nucleus • From this experiment, Rutherford results were: • The majority of a-particles went straight through (A) o This suggested the atom is mainly empty space • Some a-particles deflected through small angles of < 10° (B) o This suggested there is a positive nucleus at the centre (since two positive charges would repel) • Only a small number of a-particles deflected straight back at angles of > 90° (C) o This suggested the nucleus is extremely small and this is where the mass and charge of the atom is concentrated o It was therefore concluded that atoms consist of small dense positively charged nuclei ● Since atoms were known to be neutral, the negative electrons were thought to be on a positive sphere of...
Details of Rutherford's Scattering Experiment narrow beam of & particles, all of the structure of the atom. probe the A thin metal foil was placed in the path of the a particles Scattered by the metal fail were constant could be moved around at a the be am on the metal foil. • Used a container Result of Rutherford Seattering 3 0 Path of ABC DE Rutherford Scattering Most of the atom's The nucleus is positively charged because a particles which pass hear a fixed nucleas A. De Ee same kinetic energy. beam. detected by a detector which distance from the point of impact of mass is concentrated in a small region, the nucleus, at rt repels a particles in an evacuated nucleus • From this experiment, Rutherford results were: • The majority of a-particles went straight through (A) o This suggested the atom is mainly empty space • Some a-particles deflected through small angles of < 10° (B) o This suggested there is a positive nucleus at the centre (since two positive charges would repel) • Only a small number of a-particles deflected straight back at angles of > 90° (C) o This suggested the nucleus is extremely small and this is where the mass and charge of the atom is concentrated o It was therefore concluded that atoms consist of small dense positively charged nuclei ● Since atoms were known to be neutral, the negative electrons were thought to be on a positive sphere of...
iOS User
Stefan S, iOS User
SuSSan, iOS User
charge (plum pudding model) before the nucleus was theorised • Now it is known that the negative electrons are orbiting the nucleus. Collectively, these make up the atom a source- narrow beam of incident a particles the thin metal foil fluorescent screen centre of the evacuated metal container ▲ Figure 1 Rutherford's a-scattering apparatus observe microscope a tom.