The overall energy (the enthalpy of formation, δh∘f) involved in the formation of cscl from cs(s) and cl2(g) is −443 kj/mol. given the following information: heat of sublimation for cs is +76 kj/mol, bond dissociation energy for cl2 is +242 kj/mol making δh∘f(cl(g))=+121 kj/mol (hint: use +121), ei1 (first ionization energy) for cs is +376 kj/mol, and eea (electron affinity) for cl(g) is −349 kj/mol. what is the magnitude of the lattice energy for cscl?