1. Draw the Lewis structure, give the formal charge and oxidation number on each atom, predict the molecular structure, estimate all bond angles, and give the hybrid orbitals needed for the central atom(s)) for the following:
a. ICl2–
b. ClO2
c. IF5
2. Construct a molecular orbital diagram for HeHe*, where He* is the excited state of He with electron configuration 1s12s1. What is the bond order of the molecule?
3. Give the electron configuration and ground state term symbol for Ni, Ni2+, and Rh+.
4. Assuming that the atomic properties are valid in the solid state, predict the trend of the density for the first row transition metals, Sc to Zn. Briefly explain your reasoning.
5. Ge and As are reported to have the same atomic radius, 122 pm. Provide an explanation for this anomaly.