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chpter 25.3
chemistry
Question | Answer |
---|---|
fission is the | splitting of a nucleus into smaller fragments |
in a chain reaction, some of the neutrons produced react with other fissionable atoms | producing more neutrons which react with still more fissionable atoms |
neutron moderation is a process that | slows down neutrons so the reactor fuel captures them to continue the chain reaction |
fission occurs when | nuclei combine to produce a nucleus a greater mass |
fusion reactions release much _____ energy than fission reactions | more |
the potential fuels are | inexpensive & readily available |
the problems with fusion lie in | achieving the high temps necessary to start the reaction |