What is a compound, element, and mixture?

All three are substances and contain atoms.

An element is a pure atom. It is only composed of protons and neutrons. Everything is made up of these and it cannot be broken down into different substances.

A compound is a chemical bond between two or more . The only way they can be separated is through chemical reactions.

A mixture is a mix of elements and/or . Compounds and elements in a mixture can be separated by processes like distillation.