Activity 2:Men behind forces direction:
a)the pictures, dialogues and dates below show significant moments
b)label the picture dialogue and date with 1 if you think the set of picture
c)record your answer in your notebook

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical 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.