Question

qe 4 table salt, nacl is a common ionic compound. sodium and chlorine are found in this form together primarily because --
sodium has 1 additional valence electron it can give away in order to form a complete, stable octet shell
chlorine has 1 additional valence electron it can give away in order to form a complete, stable octet shell
sodium is missing 1 valence electron needed to form a complete, stable octet shell
chlorine can accept 2 - 3 additional electrons per atom to form a stable octet shell

Explanation:

Sodium has 1 valence electron. By giving it away, it attains a stable octet (like the noble gas neon). Chlorine has 7 valence electrons and needs 1 more to complete its octet (like argon). Sodium donates its extra valence electron to chlorine.

Answer:

sodium has 1 additional valence electron it can give away in order to form a complete, stable octet shell.