Answer
$2.2 \times 10^4 \space Rh \space atoms$
Work Step by Step
1. Identify the conversion factors:
- Meters to centimeters: $\frac{100 \space cm}{1 \space m }$
- $\mu m$ to Meters : $\frac{10^{-6} \space m}{1 \space \mu m }$
** If we divide the length of the line of atoms by their diameters, we will get the total number of atoms.
$\frac{6.0 \space \mu m \space }{2.7 \times 10^{-8} \space cm \space } \times \frac{100 \space cm}{1 \space m } \times \frac{10^{-6} \space m}{1 \space \mu m } = 2.2 \times 10^4 \space Rh \space atoms$
