We would have to line up 3.57 × 10⁹ copper atoms side by side to form a line 1 m long.
The atomic radius of 1 atom of copper is about 140 pm. Its diameter (twice the radius) is:
[tex]d = 2 \times 140 pm = 280 pm[/tex]
We will convert 280 picometers to meters using the conversion factor 1 m = 10¹² pm.
[tex]280 pm \times \frac{1m}{10^{12}pm } = 2.80 \times 10^{-10} m[/tex]
If each copper atom has a diameter of 2.80 × 10⁻¹⁰ m, the number that it would take to span a distance of 1 m is:
[tex]1 m \times \frac{1atomCu}{2.80 \times 10^{-10} m} = 3.57 \times 10^{9} atomCu[/tex]
We would have to line up 3.57 × 10⁹ copper atoms side by side to form a line 1 m long.
You can learn more about unit conversion here: https://brainly.com/question/19420601
