What is a pure substance?

• Only contains one element or compound

• Contains multiple elements or compounds

• Is a mixture of different substances

• Can be separated into different substances

What is a mixture?

• More than one element or compound together

• A single element

• A single compound

• A chemical reaction

What are the three main types of particle?

• Atoms, molecules, ions

• Protons, neutrons, electrons

• Quarks, leptons, bosons

• Solids, liquids, gases

What is an atom?

• A tiny uncharged particle

• A large charged particle

• A molecule

• A cell

What is a molecule?

• A particle that contains only a few atoms bonded with covalent bonds

• A large structure made of many atoms

• A single atom

• A type of chemical reaction

What is an ion?

• A tiny charged particle

• A large neutral particle

• A small uncharged particle

• A molecule with no charge

What is an element?

• A substance made of only one type of atom

• A mixture of different substances

• A compound of two or more elements

• A solution of various compounds

What is a compound?

• A substance made of two or more types of atoms chemically joined together

• A single atom

• A mixture of different substances not chemically bonded

• A molecule consisting of only one type of atom

What does the term diatomic mean?

• There are two atoms per molecule

• There are three atoms per molecule

• There is one atom per molecule

• There are four atoms per molecule

What is a subatomic particle?

• A particle smaller than an atom

• A particle larger than an atom

• A type of molecule

• A type of chemical bond