The inorganic compound formed between Sodium Na and Chlorine Cl is Sodium Chloride NaCl . Based on their electronegativity values, Sodium has an electronegativity of 0.93, while Chlorine has an electronegativity of 3.16. The difference in electronegativity between these two elements is 3.16 - 0.93 = 2.23.Since the electronegativity difference is greater than 1.7, the bond formed between Sodium and Chlorine is an ionic bond. In an ionic bond, one atom in this case, Sodium loses an electron to become a positively charged ion cation , while the other atom Chlorine gains an electron to become a negatively charged ion anion . In the case of NaCl, Sodium loses one electron to become Na+ and Chlorine gains one electron to become Cl-. The electrostatic attraction between the oppositely charged ions forms the ionic bond, resulting in the formation of the inorganic compound Sodium Chloride NaCl .