Calculating Atomic Size rI 1.0 cm3 of gold,containing 5.9 x 1022 atoms Assuming each atom takes upavolume of we can calculate the radius of a single atom: ·10cm3_ radius of one gold atom 1.6x10-8cm,or total (5.9×1022) 1.6 angstoms volume number volume of of atoms one atom -8Calculating Atomic Size Assuming each atom takes up a volume of π r3, we can calculate the radius of a single atom: 1.0 cm3 of gold, containing 5.9 x 1022 atoms 1.0 cm3 (5.9 x 1022) volume of one atom number of atoms total volume radius of one gold atom = 1.6 x 10-8 cm, or 1.6 angstoms r = π r 3 4 3 4 3 I-8