Question

what happens when silver is exposed to atmosphere​

Answer 1

Answer:

The silver becomes black when exposed to air for a long time as you would have seen in case of old artifacts made of this element. The traces of H2S, present in the air, reacts with the silver(better to say oxidized silver layer) to form Silver Sulphide.

Answer 2

The silver becomes black when exposed to air for a long time as you would have seen in case of old artifacts made of this element. The traces of H2S, present in the air, reacts with thesilver(better to say oxidizedsilver layer) to form SilverSulphide.