Select the response(s) below that correctly describe(s) part of the process by which elements combine to form ionic compounds. A.
Ions with the same charge are attracted to each other and form elements.

B.
A metal gives up one or more electrons to a nonmetal, so the atoms become ions.

C.
The nonmetal gives a proton to the metal.

D.
The ions have opposite charges, so they are attracted to each other.