An ionic bond involves _____ . An attraction between ions of opposite charge water avoidance the sharing of a single pair of electrons the unequal sharing of an electron pair no atoms other than sodium and chlorine
The correct Answer and Explanation is:
An ionic bond involves an attraction between ions of opposite charge.
Explanation:
An ionic bond is a type of chemical bond that forms between two atoms when one atom donates an electron to another atom, leading to the formation of positively and negatively charged ions. The bond is the result of the electrostatic attraction between these oppositely charged ions. Typically, ionic bonds occur between metals and nonmetals, where the metal tends to lose electrons and the nonmetal tends to gain them.
When an atom loses one or more electrons, it becomes a positively charged ion (cation). Conversely, when an atom gains electrons, it becomes a negatively charged ion (anion). For instance, in sodium chloride (NaCl), sodium (Na) loses one electron to form a Na⁺ cation, and chlorine (Cl) gains that electron to form a Cl⁻ anion. These two ions are then attracted to each other due to their opposite charges, forming an ionic bond.
Ionic bonds are generally strong, but they can be disrupted in the presence of polar solvents like water. Water molecules can surround the ions, reducing the electrostatic attraction and allowing the ionic compound to dissolve.
Ionic compounds often exhibit specific characteristics:
- High melting and boiling points: This is due to the strong electrostatic forces between the ions.
- Electrical conductivity in molten or dissolved state: Since the ions are free to move, they can conduct electricity in these states, unlike in their solid form.
- Formation of crystalline structures: Ionic compounds often form regular, repeating patterns in the solid state, leading to crystalline shapes.
In summary, an ionic bond involves the attraction between ions of opposite charge and is an essential interaction in the formation of many compounds, especially salts like NaCl.