Answer:
2.03 × 10⁻⁴ moles
Explanation:
To convert atoms to moles, use Avogadro's number (6.022 × 10²³).
(1.22 × 10²⁰ atoms)/(6.022 × 10²³ atoms/mol) = 2.03 × 10⁻⁴ mol
7.35×1023 atoms
