Nuclear fission happens naturally every day.as uranium
constantly undergoes spontaneous fission very slowly and emits
fission products and neutrons. The uranium-239 isotope in natural
uranium normally limits this reaction by capturing these neutrons
before they could cause additional fissions of uranium-235
isotopes, preventing a chain reaction.
This process can be accelerated in a nuclear reactor by use of a
moderator to rapidly slow the neutrons and thus increase the
probability that they will trigger other fissions (instead of being
captured by uranium-239 first), by participating in a chain
reaction.
This process can be accelerated in an atomic bomb by enriching
the uranium to between 20% to 95% uranium-235 isotope to increase
the probability that they will trigger other fissions (instead of
being captured by uranium-239 first), by participating in a chain
reaction.
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Term1/5
Which of the following is an example of nuclear fission
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A large radioactive atom breaks into smaller atoms, producing
nuclear energy.
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Term1/5
What safety features aims to keep nuclear radiation contained
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Definition1/5
Steel-reinforced concrete
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Term1/5
In the use of nuclear fuels where does the power come from
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Definition1/5
Energy contained in bonds within a nucleus that is converted to
kinetic energy.
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Term1/5
Rods made with non-fissioning material are inserted into the fuel tank to
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Definition1/5
slow down the chain reaction by absorbing free neutrons
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When does nuclear fission occur
Nuclear fission happens naturally every day.as uranium
constantly undergoes spontaneous fission very slowly and emits
fission products and neutrons. The uranium-239 isotope in natural
uranium normally limits this reaction by capturing these neutrons
before they could cause additional fissions of uranium-235
isotopes, preventing a chain reaction.
This process can be accelerated in a nuclear reactor by use of a
moderator to rapidly slow the neutrons and thus increase the
probability that they will trigger other fissions (instead of being
captured by uranium-239 first), by participating in a chain
reaction.
This process can be accelerated in an atomic bomb by enriching
the uranium to between 20% to 95% uranium-235 isotope to increase
the probability that they will trigger other fissions (instead of
being captured by uranium-239 first), by participating in a chain
reaction.
Which of the following is an example of nuclear fission
A large radioactive atom breaks into smaller atoms, producing
nuclear energy.
What safety features aims to keep nuclear radiation contained
Steel-reinforced concrete
In the use of nuclear fuels where does the power come from
Energy contained in bonds within a nucleus that is converted to
kinetic energy.
Rods made with non-fissioning material are inserted into the fuel tank to
slow down the chain reaction by absorbing free neutrons