Particles that are always made up of more than one atom are called molecules.

Here are some examples:

* Water (H₂O): Two hydrogen atoms and one oxygen atom

* Carbon dioxide (CO₂): One carbon atom and two oxygen atoms

* Sugar (C₁₂H₂₂O₁₁): Many carbon, hydrogen, and oxygen atoms

* DNA : A very large molecule made up of many atoms of carbon, hydrogen, oxygen, nitrogen, and phosphorus

Let me know if you'd like to explore other examples or have more questions!