There are three possible «states
of silver» that are created purposefully via the electrolysis method: Ionic silver (Ag +), charged silver
particles, which are clusters
of negatively charged silver atoms (AG --RRB-, and metallic silver
particles (charged silver
particles can agglomerate and drop
out of the colloidal
suspension).
You can check my 1988 - Naturwissenschaften - paper on dust transport for the
particle size versus
suspension lifetime stats, The bottom line is that as millimeter sized grains fall
out in hours, and vertical convection systems seldom cohere for days, few
particles larger than tens
of microns make it across the pond.