Formation of Ionic Bond — Prelims Questions

Which of the following sets of elements is most likely to form an ionic compound?

Which of the following factors does NOT favor the formation of an ionic bond?

In the Born-Haber cycle for the formation of $NaCl(s)$, which step represents the most exothermic process?

Which of the following ionic compounds is expected to have the highest lattice enthalpy?

Which statement accurately describes the electron transfer in the formation of $CaF_2$?

Which of the following statements about the formation of ionic bonds is INCORRECT?