Question

fill in the blank question
when sodium and chlorine combine to form a compound, each sodium atom one electron and each chlorine atom one electron.

Explanation:

Sodium has one valence electron in its outer shell. It tends to lose this electron to achieve a stable electron configuration (similar to the noble gas neon). Chlorine has seven valence electrons. It gains one electron to complete its outer shell and achieve a stable electron configuration (similar to the noble gas argon). This electron - transfer forms an ionic bond between sodium and chlorine, resulting in the formation of sodium chloride (\(NaCl\)).

Answer:

loses; gains