to acheive stability when it combines with sodium, a chlorine atom will what?
accept 1 electron? accept 7 electrons? donate 1 electron? donate 7 electrons?
cl has 7 valence electrons and so needs 1 more... so it accepts one...
Atomic Number: 17 - so 2, 8, 7 +1
Na+ + Cl- =>NaCl and therefore chlorine donates 1 atom to form sodium chloride
accept 1 election? I don't know just a guess...lol