Atomic StructureHard

Question

If nucleus and atom are considered as perfect spheres with diameters 4 × 10–15 m and 2 × 10–10 m, respectively, then the ratio of the volumes of nucleus and atom should be

Options

A.2 × 10–5:1
B.8 × 10–15:1
C.1.25 × 1014:1
D.8 × 1015:1

Solution

$\frac{V_{\text{nucleus}}}{V_{\text{atom}}} = \left( \frac{4 \times 10^{- 15}}{2 \times 10^{- 10}} \right) = \frac{8 \times 10^{- 15}}{1}$

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