Question

Sodium and chlorine are placing in the third period of the modern periodic table with group and respectively .which of them can form anion and cation? Give reason

Answer 1

chlorine forms anion since it is electronegative and gains electrons to ensure an octet.

sodium forms cations since it is electropositive and loses electrons to ensure octets

Answer 2

sodium will form cation & chlorine will form anion

Reason

Sodium has the ability to give electron to complete octet &

Chlorine will aspect one electron from sodium to complete it octet, the bond form between the Na & Cl is

ionic bond because it transfer completely one electron