Question

2 × 10⁸ atoms of carbon are arranged side by side. Calculate the radius of 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

`= (2.4xx10^(-2)" m")/(2xx10^8)`

`= 1.2 xx 10^(-10) " m"`

`:. "Radius of carbon atom"  = "Diameter"/2`

`= (1.2 xx 10^(-10)" m")/2`

`= 6.0 xx 10^(-11) " m"`