What is/are the element(s) or compound(s) that can be used in black and white photography?
AgCl and AgBr
Black and white photography relies on the photosensitivity of silver halides, which decompose on exposure to light to form finely divided black silver metal, creating the photographic image.
Both silver chloride (\(AgCl\)) and silver bromide (\(AgBr\)) are used as light-sensitive compounds coated on photographic film and paper for this purpose.
Pure silver metal (Ag) alone is not photosensitive in the way required for capturing images, so it is not used directly in this process.
Hence, the compounds used in black and white photography are AgCl and AgBr.
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