A)Cb, Co, Ca, C
B)Co, Cp, Ca, Cr
C)Cb, Cu, Cm, C
D)Co, Cu, Ca, C

A)I, Io, P, Ph
B)Fe, I, P, Ph
C)I, Io, K, P
D)Fe, I, K, P

A)an atom of sodium loses an electron to another atom of sodium
B)an atom of sodium shares two electrons with two atoms of chlorine
C)an atom of sodium gains an electron from an atom of chlorine
D)an atom of sodium loses an electron to an atom of chlorine