Silver (atomic weight 108 g mol-1) has a density of 10.5 g cm-3. The number of silver atoms on a surface of area 10-12 m2 can be expressed in scientific notation as Y x 10-x, The value of x is ..............

Density = 10.5 g cc-1This means 10.5 g silver is present in 1 cm310.5108 mol silver is present in 1 cm310.5108 N silver atoms present in 1 cm310.5108N3 silver atoms present in 1 cm10.5108N31/2silver atoms present in 1 cm210-12m2 is equal to 10-8cm210.5108N31/2×10−8 silver atoms present in 10-12m2On solving, we get 1.5 x 10-7 = Y x 10-x∴x=7