Question

Answer the following in brief:
1.Explain the formation of the compound NaCl and derive the valency of Na & Cl.​

Answer 1

✳For instance, consider the compound NaCl.

✳We know that the valency of sodium (Na) is +1 and Chlorine  (Cl) is -1.

✳Both sodium and chlorine have to gain one electron and lose one electron respectively to achieve stable outermost orbit.

✳Therefore, sodium donates an electron and chlorine accept the same electron.