`2 xx 10^(8)` atoms of carbon are arranged side by side. Calculate the radius of carbon atom if the length of this arrangement is 2.4 cm.

Explanation

Atom will cover length equal to its diameter
Diameter of carbon atom `= (24)/( 2 xx 10 ^(8)) = 1. 2 xx 10 ^(-8) cm = 1. 2 xx 10 ^(-10) m`
Radius of carbon atom `= (1.2 xx 10 ^(-10))/( 2 ) = 0. 6 xx 10 ^(-10) m = 0.06 nm`