Answer:
(b) 24
Explanation:
Given that:
If atoms in a regular three-dimensional solid are about 10⁻¹⁰ m apart:
Then; the volume of the atom will be (10⁻¹⁰ m)³
= (10⁻³⁰ m)
Since, we were told that the cube have length 10⁻² m .; its volume will also be
= (10⁻² m) ³
= (10⁻⁶ m)
Now, the estimate of the number of atoms in the cube can now be:
[tex]N_A=\frac{V_{cube}}{V_{atom}}[/tex]
= [tex]\frac{10^{-6}}{10^{-30}}[/tex]
= 10²⁴
So,we can therefore conclude that our answer is 10²⁴ (Since we are asked to enter it in exponential form)
