Answer:
An atom is the basic particle from which all elements are made. Different elements have different properties because their atoms are different.
A chemical formula is an expression that shows the elements in a compound and the relative proportions of those elements/ratio of atoms.
The chemical formula is a representation of a compound, molecule, substance in types and numbers of atoms that repeat to make up a substance.
Compounds can be in forms of: empirical, molecular, or structural formulas.
For example, part of the gas you inhale is carbon dioxide. Its chemical formula is CO2. The number 2 below the symbol for oxygen tells you that the ratio of carbon dioxide is 1 to 2.
If a different ratio of carbon atoms and oxygen atoms are seen in a formula, you have a different compound.
So the number and type of atoms in a chemical affect their properties.
Step-by-step explanation: