One mole of copper equals about how many atoms?

a. 16 atoms

b. 6000 atoms

c. 6.02 * 1023 atoms

d. 1.66 * 10-22 atoms

One mole of copper equals 6.02 * 10^23 atoms. The answer is letter C. This follows the Avogaro’s law wherein 1 mole of a substance is equal to 6.02 x 10^23 atoms, formula units or molecules. This is applicable to all substances.