Elements consist of one type of atom only
Atoms in gases often go round in pairs. A molecule witht wo atoms in it is called a diatomic molecule.
Compounds are chemically bonded
- A compound is a substance that is made of two or more different elements which are chemically joined together
- For example, carbon dioxide is a compound formed from a chemical reaction. One carbon atom reacts with two oxygen atoms for form a molecule of carbon dioxide, with the formula c02
- Its very difficult to separate the two original elements out again
- The properties of a compound are often totally different from…