1. Molecules:
* Two or more atoms of the same element can bond together to form a molecule. For example, two oxygen atoms (O) combine to form an oxygen molecule (O2), which we breathe.
* Atoms of different elements can also bond to form molecules. For example, water (H2O) is made of two hydrogen atoms (H) and one oxygen atom (O).
2. Compounds:
* Substances made of two or more elements chemically combined in a fixed ratio. Salt (NaCl) is a compound made of sodium (Na) and chlorine (Cl).
3. Everything Else!
* All matter, from the air we breathe to the stars in the sky, is ultimately made up of different combinations of atoms.
* The variety and complexity of atoms and their bonding possibilities lead to an incredible diversity of substances in the universe.
Here are some examples:
* Metals: Iron (Fe), copper (Cu), gold (Au) are made of single types of atoms.
* Gases: Nitrogen (N2), carbon dioxide (CO2) are made of molecules.
* Liquids: Water (H2O), oil (various hydrocarbons) are made of molecules.
* Solids: Diamond (C), sugar (C12H22O11) are made of molecules or complex structures.
So, the answer to your question is: Different kinds of atoms make everything! They are the building blocks of all matter.
