Question

which of these best describes an ionic bond? a force that keeps two large molecules together an attraction that occurs between two nonmetals a force that holds two oppositely charged ions together an electromagnetic attraction that occurs between two metals

Explanation:

An ionic bond is formed when one atom transfers electrons to another atom, resulting in the formation of positively and negatively charged ions. These oppositely charged ions are then attracted to each other due to electrostatic forces. Let's analyze each option:

• "A force that keeps two large molecules together": Ionic bonds are not about large molecules. They are about ions.
• "An attraction that occurs between two nonmetals": Non - metals usually form covalent bonds (sharing of electrons), not ionic bonds.
• "A force that holds two oppositely charged ions together": This is the correct definition of an ionic bond.
• "An electromagnetic attraction that occurs between two metals": Metals form metallic bonds (a sea of delocalized electrons among metal cations), not ionic bonds.

Answer:

a force that holds two oppositely charged ions together