Americium-241 undergoes fission to produce three neutrons per fission event. a change occurred that caused the rate of fission to increase. what will be effective at achieving a critial mass is "Remove a deflective shield surrounding the sample."Option A. This is further explained below.
Generally, Americium-241 is simply defined as a radioactive isotope. Chemical symbol Am stands for a man-made radioactive metal that is solid at room temperature.
In conclusion, The fission of Americium-241 produces three neutrons each time. The rate of fission increased as a result of a modification. removing a deflective barrier around the sample will be beneficial in reaching a critial mass.
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