The proton has a radius of 1.0 x 10 -13 cm and a mass of 1.7 x 10 -24 g. Determine the density of a proton for a sphere. Volume is equal to (4/3) π r 3.
A. 3.4 x 10 21 g/cm 3
B. 1.7 x 10 39 g/cm 3
C. 5.9 x 10 12 g/cm 3
D. 4.1 x 10 14 g/cm 3
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