* Electronegativity Difference: Silver (Ag) has an electronegativity of 1.93, while chlorine (Cl) has an electronegativity of 3.16. The difference is quite significant (1.23), indicating a strong attraction between the two atoms. This difference leads to the formation of an ionic bond, where silver loses an electron to chlorine, resulting in a positively charged silver ion (Ag+) and a negatively charged chloride ion (Cl-).
* Crystal Structure: Silver chloride forms a crystalline structure held together by electrostatic forces between the oppositely charged ions.
Key Points:
* Ionic compounds: Result from the transfer of electrons between atoms, creating ions with opposite charges that are attracted to each other.
* Polar compounds: Have a significant difference in electronegativity between atoms, leading to uneven sharing of electrons and a partial positive and partial negative end within the molecule.
* Nonpolar compounds: Have a minimal electronegativity difference, leading to even sharing of electrons and no significant charge separation.
Since silver chloride exhibits a large electronegativity difference and forms ions, it is classified as an ionic compound.