Elements are the simplest pure substances that cannot be broken down into simpler substances by chemical means. They are found on the periodic table.

Compounds are formed when two or more elements chemically combine in a fixed ratio. For example, water (H₂O) is a compound formed by the chemical combination of hydrogen and oxygen.

Here are some examples of metals:

* Iron (Fe)

* Gold (Au)

* Silver (Ag)

* Copper (Cu)

* Aluminum (Al)

While there are alloys, which are mixtures of metals, the metals themselves are elements.