Silver Bromide Formula

Silver bromide is an ionic compound with the chemical formula AgBr. It is a white, crystalline solid that is sparingly soluble in water.

The formula for silver bromide indicates that it is composed of one silver ion (Ag+) and one bromide ion (Br-) held together by ionic bonds. In this ionic compound, the silver ion has a +1 charge while the bromide ion has a -1 charge.

The electron configuration of silver is [Kr]4d¹⁰5s¹ and the electron configuration of bromine is [Ar]3d¹⁰4s²4p⁵. When they combine to form silver bromide, the outermost electrons on the bromine atom are transferred to the silver atom, resulting in the formation of Ag+ and Br- ions. The ionic bond between these ions is formed due to the electrostatic attraction between oppositely charged ions.

Silver bromide is commonly used in photographic films, where it plays a crucial role in capturing images. When exposed to light, the silver bromide molecules in the film undergo a chemical reaction that results in the formation of metallic silver. This process is called photo-reduction, and it forms the basis of traditional film photography.