Final answer:
The circumference of a carbon atom, given an atomic radius of 77 pm, is calculated using the formula 2πr, resulting in approximately 484.126 pm.
Step-by-step explanation:
The question regarding the circumference of a carbon atom revolves around a basic concept in physics and mathematics. Given the atomic radius of carbon is 77 pm (picometers), which is 77 × 10⁻¹² meters, we can calculate the circumference using the formula 2πr, where r is the radius and π (pi) is approximately 3.14159. Therefore:
Circumference = 2 × π × 77 pm = 2 × 3.14159 × 77 pm = 484.126 pm (rounded to three decimal places).