What are the 2 types of lava?

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.

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by