Multiple choice

In order to maintain a stable reaction, Uranium must first be ______.

  1. Refined

  2. Indulged

  3. Enriched

  4. Degraded
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Natural uranium consists mostly of the isotope U-238, which is not easily fissionable. Enrichment increases the concentration of the isotope U-235, which is necessary to sustain a nuclear chain reaction.

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