Construct a simple (i. e., no orbital hybridization, no electron promotion) valence bond wave function for the first bond in Li2. The wave function is a product of a coefficient and a function of two orbitals. The coefficient is labeled for the type of atomic orbital involved in the bond, and depends on the distance (R) between the two electrons in the bond. Assume the electron configuration of each atom before bonding is 1s22s12px02py02pz0.

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.