Avolcano violently erupts near a small town and wildlife preserve. which effects might occur?

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

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.