Question

A typical atom has a diameter of about 1.32 x 10-10 m. (a) what is this in inches (b) approximately how many atoms arethere along a 1.32 cm line.

Answer 1

Answer:

A ) $5.197 \times 10 ^{-9} inches$

b) There are approximately 100,000,000 atoms on the 1.32 cm lines

Explanation:

To ensure the accuracy of our answer, we will have to make sure we work in the appropriate units.

A

To convert    $1.32 \times 10^{-10} m$ to inches, we can use this factor.

1 m = 39.3701 inches

Therefore $1.32 \times 10^{-10} m$ =  

B

To find the number of atoms on a 1.32 cm line, we will first of all need to convert 1.32 cm to meters.

1.32 cm = 0.0132 metres (divided 1.32 by 100 to convert to metres)

Assuming all the atoms are arranged side by side, with their edges touching on the 0.0132m line, the number of atoms present will be

$0.0132/1.32\times 10^{-10}$ = 100,000,000 atoms