Which is most likely to be part of an ionic bond?

Question

A. an atom with no valence electrons
B. an atom with one valence electron
C. an atom with two valence electrons
D. an atom with three valence electrons

Answer 1

easy to lose one and become +1
like Na ---> Na+1
and if you have one less than a full in your outer shell to gain like Cl ---> Cl-