which of the following statements are true once the sodium chloride bond formation shown in the figure takes place? select all that apply. a.the resulting sodium cation has a stable octet in its valence shell. b.the resulting chlorine anion has a stable octet in its valence shell. c.the electrostatic attraction between the positive sodium ion and negative chlorine ion forms a nonpolar bond. d.the electrostatic attraction between the positive sodium ion and negative chlorine ion forms a polar covalent bond. e.the electrostatic attraction between the positive sodium ion and negative chlorine ion forms an ionic bond.