Question

2 ×108 atoms of carbon are arranged side by side. Calculate the radius of the carbon atom if the length of this arrangement is 2.4 cm.

Answer 1

Length of the given arrangement = 2.4 cm
Number of carbon atoms present = 2 × 108
∴ Diameter of carbon atom = $\frac{2.4\times 10^{-2}m}{2\times10^8}$
= 1.2 × 10-10 m
∴ Radius of carbon atom = $\frac{Diameter}{2}$ = $\frac{1.2\times10^{-10}m}{2}$
= 6.0 × 10-11 m