Silver Bromideball

Silver Bromideball is a soft, pale-yellow, water-insoluble salt well known for its unusual sensitivity to light, as with other silver halides. As such, modern photographic materials (namely film reels) are based off of Silver Bromideball for its properties. Its molecule can be found in nature as the mineral bromargyrite.

Its chemical formula is AgBr, meaning that its molecule contains both a silver atom and a bromine atom.