1. The oxide of which of the following metals should have the greatest lattice energy?
a. gallium
b. aluminum
c. thallium
d. lead
e. indium
2. For which pair is electron transfer from the alkali metal atom to the halogen atom most likely to be an exothermic process?
a. K and F
b. Cs and Cl
c. K and At
d. There are no such a pair of atoms