Y8CHEM Glossary - All

The smallest particle of an element

• period

• atom

• particle

• products

The number by which elements are ordered in the periodic table

• atomic number

• reversible

• matter

• endothermic reaction

The temperature at which a substance changes from liquid to gas

• boiling point

• reactive

• condensation

• combustion

An attractive force that holds two atoms together

• atomic number

• chemical bond

A symbol that shows the chemical composition of a substance

• reactive

• mixture

• pure substance

• chemical formula

The re-arrangement of atoms to form one or more new substances

• atom

• chemical reaction

• metal

• reactive

One or two letters used to represent an element

• precipitate

• chemical symbol

• element

• chemical bond

A substance made up of two or more types of atom bonded together

• Compound

• Element

• Mixture

• Molecule

A molecule that is made of only one type of element.

• melting

• elemental molecule

• products

• chemical formula

A chemical substance made up of only one type of atom

• evaporation

• period

• melting point

• element