Ionic bonds refer to a
complete transfer of electrons between atoms to produce 2 oppositively ion
charged. In this kind of bond, the metal loses its electron to become a
positive charge and vice versa.
There can be a lot of elements that can be combined to produce an ionic
bond.
One example is the fluorine and the lithium.
Flourine is an element with a symbol of F and contains the lightest
halogen while lithium is an element with symbol of Li, known to become a
silver metal.