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Questions and Answers
Who discovered the nucleus of the atom in 1911?
Who discovered the nucleus of the atom in 1911?
- Francis Perrin
- Niels Bohr
- Ernest Rutherford (correct)
- Otto Hahn
What is released from the nucleus of atoms through fission or fusion?
What is released from the nucleus of atoms through fission or fusion?
- Neutrons
- Protons
- Electrons
- Nuclear energy/technology (correct)
Who discovered the nuclear fission reaction in 1939?
Who discovered the nuclear fission reaction in 1939?
- Niels Bohr
- Francis Perrin
- Fritz Strassmann
- Otto Hahn (correct)
Who discovered the critical mass of uranium in 1939?
Who discovered the critical mass of uranium in 1939?
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What did Niels Bohr find about fission in uranium-235?
What did Niels Bohr find about fission in uranium-235?
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What was the main feature of second generation reactors?
What was the main feature of second generation reactors?
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What is the goal of fourth generation reactors?
What is the goal of fourth generation reactors?
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Study Notes
- Nuclear energy/technology is released from the nucleus of atoms through fission or fusion.
- Ernest Rutherford discovered the nucleus of the atom in 1911.
- Nuclear fission reaction was discovered in 1939 by Otto Hahn and Fritz Strassmann.
- Niels Bohr found that fission was more likely to occur in uranium-235.
- Francis Perrin discovered critical mass of uranium in 1939.
- First generation reactors were early prototypes for civilian use.
- Second generation reactors had added control and safety features.
- Third generation reactors used passive safety systems.
- Fourth generation reactors are envisioned as successors of third generation reactors.
- The designs target improved safety, sustainability, efficiency, and cost.
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