Question

americium-241 undergoes fission to produce three neutrons per fission event. a change occurred that caused the rate of fission to increase. which will be effective at achieving a critial mass? check all that apply.
□ remove a deflective shield surrounding the sample.
□ remove absorbent material mixed in with the sample.
□ compress the sample of americium-241.
done

Explanation:

Answer:

Remove absorbent material mixed in with the sample.
Compress the sample of americium - 241.