Question

If the photographic emulsion used in the autoradiography procedure is left in contact with

the isotope for a longer period of time, what happens?
A) There are more exposed silver grains.
B) There are fewer exposed silver grains.
C) There is no change in the number of exposed silver grains.
D) The entire specimen will be uniformly covered with exposed silver grains.
E) There will be very few exposed silver grains.

Answer 1

If the photographic emulsion used in the autoradiography procedure is left in contact with the isotope for a longer period of time, there will be more exposed silver grains.

Step-by-step explanation:

If the photographic emulsion used in the autoradiography procedure is left in contact with the isotope for a longer period of time, there will be more exposed silver grains. The emulsion contains silver compounds that are sensitive to radiation.

When the emulsion is exposed to the isotope, the radiation causes a chemical change, reducing the silver compounds and creating silver grains. The longer the emulsion is in contact with the isotope, the more radiation it is subjected to, resulting in a greater number of exposed silver grains.