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Questions and Answers
What did Rutherford conclude about the atom based on his gold foil experiment?
What did Rutherford conclude about the atom based on his gold foil experiment?
- The atom has a negative nucleus with positive electrons.
- The atom has no nucleus but only orbiting electrons.
- The atom has a small, dense, positive nucleus with orbiting negative electrons. (correct)
- The atom has a large, diffuse nucleus with stationary positive electrons.
Which radiation type is stopped by paper?
Which radiation type is stopped by paper?
- High energy photons (Gamma rays).
- Neutrons.
- Alpha particles (helium nuclei). (correct)
- Fast electrons (Beta particles).
What holds the nucleus of an atom together?
What holds the nucleus of an atom together?
- Neutrons.
- Protons.
- Gamma rays.
- Strong nuclear force overcoming electrostatic repulsion. (correct)
What is the process in stars where small nuclei fuse and release binding energy?
What is the process in stars where small nuclei fuse and release binding energy?
Which particles are affected by the strong force and made of quarks?
Which particles are affected by the strong force and made of quarks?
What leads to quark flavor change and is responsible for beta decay?
What leads to quark flavor change and is responsible for beta decay?
For low nucleon numbers, 𝑨𝑨 < 𝟓𝟓𝟓𝟓, the binding energy per nucleon increases. This means that if two small nuclei such as ²¹H and ³¹H are combined there is a large decrease between the mass of the two smaller nuclei and the resulting ______ nuclei.
For low nucleon numbers, 𝑨𝑨 < 𝟓𝟓𝟓𝟓, the binding energy per nucleon increases. This means that if two small nuclei such as ²¹H and ³¹H are combined there is a large decrease between the mass of the two smaller nuclei and the resulting ______ nuclei.
Fusion is the process that generates the energy in stars. For high nucleon numbers, 𝑨𝑨 > 𝟓𝟓𝟓𝟓, the binding energy per nucleon decreases. Therefore, breaking apart larger nuclei will release the binding energy and reduce the mass. This is due to the large proton number causing a large repulsive electrostatic force and a relatively feeble strong attraction due to an increased average distance between the nucleons. If a large nucleus is broken apart into two small and greater binding energy daughter nuclei then energy is released in a process known as ______.
Fusion is the process that generates the energy in stars. For high nucleon numbers, 𝑨𝑨 > 𝟓𝟓𝟓𝟓, the binding energy per nucleon decreases. Therefore, breaking apart larger nuclei will release the binding energy and reduce the mass. This is due to the large proton number causing a large repulsive electrostatic force and a relatively feeble strong attraction due to an increased average distance between the nucleons. If a large nucleus is broken apart into two small and greater binding energy daughter nuclei then energy is released in a process known as ______.
Fission occurs in fission reactors which generate electrical energy for consumers globally. Every particle has a corresponding antiparticle. The particle and antiparticle will have equal mass but opposite charge and so are attracted to each other. When these particles meet at a point in space, they annihilate to produce energy in the form of ______.
Fission occurs in fission reactors which generate electrical energy for consumers globally. Every particle has a corresponding antiparticle. The particle and antiparticle will have equal mass but opposite charge and so are attracted to each other. When these particles meet at a point in space, they annihilate to produce energy in the form of ______.
The process that involves the breaking apart of larger nuclei into smaller daughter nuclei with the release of energy is known as ______.
The process that involves the breaking apart of larger nuclei into smaller daughter nuclei with the release of energy is known as ______.
When two small nuclei are combined to form a larger nucleus, there is a release of energy in the form of ______.
When two small nuclei are combined to form a larger nucleus, there is a release of energy in the form of ______.
Fusion is the process that generates energy in ______.
Fusion is the process that generates energy in ______.
Fission reactors are used to generate electrical energy for consumers globally by harnessing the energy released during the process of ______.
Fission reactors are used to generate electrical energy for consumers globally by harnessing the energy released during the process of ______.
Antiparticles have equal mass but opposite charge to their corresponding particles and when they meet, they annihilate to produce ______.
Antiparticles have equal mass but opposite charge to their corresponding particles and when they meet, they annihilate to produce ______.
The strong attraction between nucleons and the electrostatic repulsion play a crucial role in the energy released during nuclear ______.
The strong attraction between nucleons and the electrostatic repulsion play a crucial role in the energy released during nuclear ______.
The large proton number in heavy nuclei causes a significant ______ electrostatic force.
The large proton number in heavy nuclei causes a significant ______ electrostatic force.
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