Pulling a item from the other person and fighting over it is what science def?

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.

Connect the whole numbers on the periodic table to indicate what they represent?

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude