yr 8 Elements and Compounds

Front

Atom

Back

Smallest particle of an element

Front

Compound

Back

A substance made up of atoms of two or more different elements joined by chemical bonds

Front

Mixture

Back

A combination of two or more substances that are not chemically combined

Front

Molecule

Back

A group of atoms bonded together

Front

Element

Back

A pure substance made of only one kind of atom and cannot be broken down into smaller parts

Front

Chemical

Back

Any substance with a definite composition

Front

Chemistry

Back

The study of matter and how it changes

Front

Physical change

Back

A change of matter from one form to another without a change in chemical properties (a change of state/phase)

Front

Pure substance

Back

A sample of matter, either a single element or a single compound, that has definite chemical and physical properties

Front

Impure substance

Back

A substance made up of more than one type of particle not chemically joined together