| ppefmh | Ed | Garstin | 2/10 |
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The scientists found that most of the alpha particles passed straight through the gold foil.
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The scientists found that a small number of alpha particles were strongly deflected (changed direction).
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Some of the alpha particles returned back in their original direction
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This told them that atoms are mainly empty space
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This told them that there must be a region of concentrated positive charge in the atom. This positive charge repelled the alpha particles (which are also positive).
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This told the scientists that atoms must contain a central region containing a great deal of mass.
|
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The scientists found that most of the alpha particles passed straight through the gold foil.
-
The scientists found that a small number of alpha particles were strongly deflected (changed direction).
-
Some of the alpha particles returned back in their original direction
|
-
This told them that atoms are mainly empty space
-
This told them that there must be a region of concentrated positive charge in the atom. This positive charge repelled the alpha particles (which are also positive).
-
This told the scientists that atoms must contain a central region containing a great deal of mass.
|
-
The scientists found that most of the alpha particles passed straight through the gold foil.
-
The scientists found that a small number of alpha particles were strongly deflected (changed direction).
-
Some of the alpha particles returned back in their original direction
|
-
This told them that atoms are mainly empty space
-
This told them that there must be a region of concentrated positive charge in the atom. This positive charge repelled the alpha particles (which are also positive).
-
This told the scientists that atoms must contain a central region containing a great deal of mass.
|
-
The scientist James Chadwick discovered that the nucleus contains particles with no charge. He called them neutrons.
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This is the first version of the nuclear model. Neither protons, neutrons nor electron energy levels had been discovered.
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Scientists discovered that the positive charge in the nucleus is due to positive particles which they called protons.
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Niels Bohr calculated that electrons orbit in energy levels (shells). Bohr's calculations agreed with experimental results.
|
-
The scientist James Chadwick discovered that the nucleus contains particles with no charge. He called them neutrons.
-
This is the first version of the nuclear model. Neither protons, neutrons nor electron energy levels had been discovered.
-
Scientists discovered that the positive charge in the nucleus is due to positive particles which they called protons.
-
Niels Bohr calculated that electrons orbit in energy levels (shells). Bohr's calculations agreed with experimental results.
|
-
The scientist James Chadwick discovered that the nucleus contains particles with no charge. He called them neutrons.
-
This is the first version of the nuclear model. Neither protons, neutrons nor electron energy levels had been discovered.
-
Scientists discovered that the positive charge in the nucleus is due to positive particles which they called protons.
-
Niels Bohr calculated that electrons orbit in energy levels (shells). Bohr's calculations agreed with experimental results.
|
-
The scientist James Chadwick discovered that the nucleus contains particles with no charge. He called them neutrons.
-
This is the first version of the nuclear model. Neither protons, neutrons nor electron energy levels had been discovered.
-
Scientists discovered that the positive charge in the nucleus is due to positive particles which they called protons.
-
Niels Bohr calculated that electrons orbit in energy levels (shells). Bohr's calculations agreed with experimental results.
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