Respuesta :
Answer:
The molecular formula.
Explanation:
For example CaCl2 has a calcium atom and a chlorine atom in the ratio 1:2.
Explanation:
Molecular formula is defined as the formula which represent ratio of number of atoms of each element present in the compound of one molecule.
For example, molecular formula of the compound magnesium chloride is [tex]MgCl_{2}[/tex].
So, this formula shows that there are in total one magnesium atom and two chlorine atoms. Hence, these atoms are present in 1:2 ratio.
Thus, we can conclude that the ratio of atoms in a compound is shown by the molecular formula.
