Why is silicon dioxide made up of atoms?
There are no metal cations and anions in silicon dioxide. Both silicon atoms and oxygen atoms are formedTo see whether it is made up of ions or molecules or atoms:If there is a metal cation or ammonium ion, it is generally a compound of ions
If there are four main refractory materials: diamond, crystal silicon, silicon dioxide and silicon carbide, they are atomic crystals
If it is a gas or liquid or a low boiling point solid, it is usually a molecular composition
