Iodine ******** And silver.
It is widely used in standard film-based (pre-digital) photography.
Silver (Ag) has an atomic number of 47 and is used in photography.
it is silver
Yes
Silver nitrate.
1840
it is used in the compound silver iodide and it reflects the light. it is essentially the basis of black and white photography.
Silver Halide Silver iodide
Yes - silver does react and that is why there are quite a few compounds of silver. It is used in photography for example.
Silver Iodine
Actually, it is frequently used in the production of film for photography.