1. Find the electron configuration for the following species: S, S2-, W, W+, Ni2+, Ce3+, Os, Eu.
2. Write a brief (one page, typed) review of the Chemistry Department Seminar given Friday, September 14. The title implies that the speaker will discuss noncovalent interactions. Define what the speaker means by this and how this type of chemical bonding is relevant to the seminar topic. Give examples of noncovalent bonding.