Here's why:
* Valence Electrons: These are the electrons in the outermost shell of an atom, and they are the ones that participate in chemical bonding.
* Ionic Bonds: These occur when one atom (the metal) loses one or more valence electrons to become a positively charged ion (cation), while the other atom (the nonmetal) gains those electrons to become a negatively charged ion (anion).
* Electrostatic Attraction: The oppositely charged ions then attract each other due to electrostatic forces, forming the ionic bond.
In essence, the formation of an ionic bond involves the transfer of valence electrons from one atom to another.
