In Order for a Substance to Sustain a Fission Chain

question 66

Multiple Choice

In order for a substance to sustain a fission chain reaction, one important condition is that

• A) the nuclei must collide with enough energy to overcome the electrical repulsion between them.
• B) energy must be continually supplied from the outside.
• C) each fissioning nucleus must release a sufficient number of alpha- particles.
• D) each fissioning nucleus must release a sufficient number of neutrons.
• E) the nuclei must stay in shape by maintaining a regular jogging program.

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