U
ns
-
3.
f
relative intensity
c
196
198
202
204
199 200 201
mass (amu)
**choose the statement below that is true:
a) peak frepresents an isotope with 3 more protons than the isotope shown by pean
b) peak f represents the isotope with the greatest number of neutrons.
c) there are seven ions of element z.
d) all seven peaks represent atoms with the same atomic number.

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.