Question

The diameter of zinc atom is 2.6 Å. Calculate number of atoms present in a length of 1.6 cm if the atoms are arranged side by side lengthwise.

Solution

Correct option is

 

Given length = 1.6 cm = 1.6 × 10–2 m 

Diameter of one atom = 2.6 Å = 2.6 × 10–10 m   

∴ No. of atoms present along the length, 

             .

SIMILAR QUESTIONS

Q1

If the diameter of a carbon is 0.15 nm, calculate the number of carbon atoms which can be placed side by side in a straight line across the length of scale of length 20 cm long. 

Q2

× 108 atoms of carbon are arranged side by side. Calculate the radius of carbon atoms if the length of this arrangement is 3.0 cm.