what is the simplest whole-number ratio of atoms in a molecule or formula unit called?
What is the simplest whole-number ratio of atoms in a molecule or formula unit called? Answer: Empirical formula. Empirical formula referst to the simplest whole-number ration of atoms in a molecule. A compound's molecular formula can either be the same or multiple of its empirical formula. The structural and molecular formulas are also part of the compound formulas.