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Questions and Answers
What was the unexpected result of the α-particle scattering experiment?
What was the unexpected result of the α-particle scattering experiment?
- Most of the fast-moving α-particles passed straight through the gold foil. (correct)
- All of the α-particles were deflected by the foil at large angles.
- All of the α-particles rebounded back towards the source.
- None of the above
Why did Rutherford compare the result of the α-particle experiment to firing a 15-inch shell at tissue paper?
Why did Rutherford compare the result of the α-particle experiment to firing a 15-inch shell at tissue paper?
- To emphasize the weight of the α-particles.
- To illustrate the small deflections observed in the experiment.
- To highlight the unexpected nature of some α-particles rebounding. (correct)
- None of the above
What conclusion did Rutherford draw from the fact that most α-particles passed through the gold foil without getting deflected?
What conclusion did Rutherford draw from the fact that most α-particles passed through the gold foil without getting deflected?
- The space inside the atom is mostly filled with positive charge.
- The atom is mostly filled with electrons.
- Most of the space inside the atom is empty. (correct)
- None of the above
Why was one out of every 12000 α-particles rebounding considered surprising?
Why was one out of every 12000 α-particles rebounding considered surprising?
What did Rutherford's observation that very few particles were deflected indicate about the positive charge of the atom?
What did Rutherford's observation that very few particles were deflected indicate about the positive charge of the atom?
In Rutherford's analogy, if a blind-folded child throws stones at a barbed-wire fence, why are most stones not heard striking the fence?
In Rutherford's analogy, if a blind-folded child throws stones at a barbed-wire fence, why are most stones not heard striking the fence?
What did Rutherford's gold foil experiment indicate about the atom?
What did Rutherford's gold foil experiment indicate about the atom?
According to Rutherford's nuclear model of the atom, where is most of the mass of an atom located?
According to Rutherford's nuclear model of the atom, where is most of the mass of an atom located?
Why is the nucleus of an atom considered very small compared to the size of the atom?
Why is the nucleus of an atom considered very small compared to the size of the atom?
What is one drawback of Rutherford's model of the atom regarding the electron's motion?
What is one drawback of Rutherford's model of the atom regarding the electron's motion?
What did Rutherford's experiment suggest about the size relationship between the nucleus and the atom?
What did Rutherford's experiment suggest about the size relationship between the nucleus and the atom?
What contribution did Rutherford make to our understanding of atomic structure?
What contribution did Rutherford make to our understanding of atomic structure?
Who proposed a model of an atom similar to that of a Christmas pudding?
Who proposed a model of an atom similar to that of a Christmas pudding?
In Thomson's model of an atom, how were the electrons described?
In Thomson's model of an atom, how were the electrons described?
Why did Ernest Rutherford select a gold foil for his experiment on atomic structure?
Why did Ernest Rutherford select a gold foil for his experiment on atomic structure?
What type of particles were used in Rutherford's experiment on atomic structure?
What type of particles were used in Rutherford's experiment on atomic structure?
How did J.J. Thomson describe the positive charge within an atom?
How did J.J. Thomson describe the positive charge within an atom?
What was the role of J.J. Thomson's research assistants after his tenure at the Cavendish Laboratory?
What was the role of J.J. Thomson's research assistants after his tenure at the Cavendish Laboratory?
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