In the above diagram, when Li, Be and Ca loose their electrons
the "new" valence electrons in the ion are drawn in.
These elemental ions are stable in the sense that they will
not readily gain or loose electrons. However, since they are
charged they can combine electrostatically to form ionic bonds.
the resulting compound is called "ionic" or "salt",
e.g., Ca+ + 2Cl- ---> Ca(Cl)2 = calcium chloride.