Be sure to answer all parts. Indicate the type of the bonding that occurs between reactive metals and nonmetals.
A. Ionic
B. Covalent
How can this type of bonding be described?
A. Electrons transferred from nonmetal to metal atoms
B. Electrons transferred from metal to nonmetal atoms
C. Electrons shared between two atoms

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.