Question

hlooo
silver particles become black after some time expose to air....
how .....​

Answer 1

Answer

Silver articles, when exposed to air become black after sometime. This is because the silver metal reacts with sulphur present in the atmosphere and forms silver sulphide. Thus, a layer of silver sulphide is formed on the surface of silver articles, because of which they appear dull and black.

Answer 2

Answer:

because the silver metal react with sulphur present in the atmosphere and form silver sulphide.Thus, a layer of silver silver sulphide was form on the surface of silver article, because of this they appear dull and black