Learn about elements, compounds and mixtures in this KS3 Chemistry guide from BBC Bitesize.

Chemistry: Elements, Compounds, and Mixtures (2nd Edition) (1983) is a 20-minute educational film from the *Chemistry Series* by Coronet Instructional Films, distributed by Simon and Schuster ...

The atoms of other elements, however, like hydrogen, join with another hydrogen atom as a pair, making a molecule. So, all compounds are molecules, and some elements are too.