Question

what information does an empirical formula display?
o the atomic radius
o the number of ions
o the atomic ratio
o the number of atoms per molecule

Explanation:

An empirical formula gives the simplest whole - number ratio of atoms of each element present in a compound, which is the atomic ratio. It does not show atomic radius, number of ions, or the exact number of atoms per molecule (the latter is given by the molecular formula).

Answer:

the atomic ratio