Ionic bond is a compound composed of two oppostily charged atoms?

Answer 1

Yes.

Ionic compounds are formed when there is an actual transfer of electrons. This is done to stabilize the atoms, i.e., for the atoms to get octet or stable or noble gas configuration (Completely filled outer shell). This can be done between two elements/ atoms of elements only when one of them is ready to give electrons to the other who is ready to accept.

For example, in the formation of NaCl, Sodium loses 1 electron to achieve noble gas configuration while chlorine gains one electron to achieve the same. As both atoms/ elements compromise and donate/accept electrons, the atoms have a charge associated with them based on whether they donate or accept electrons. In NaCl, since Na (Sodium) loses an electron, it has a positive charge(+1) whereas Chlorine has a negative charge (-1) as it gains one electron. Thus ionic compounds have two oppositely charge ions.