What are the 2 main purposes of a fixing solution are to expose the silver halide crystals and turn the entire crystals into a block of metallic silver?

The two main purposes of a fixing solution in Photography are to remove unexposed silver halide crystals from the film or photographic paper and to stabilize the image by converting the remaining exposed crystals into metallic silver. This process ensures that the developed image is permanent and resistant to further exposure to light. By achieving these goals, the fixing solution effectively preserves the photographic image for long-term viewing.