Atoms bond to make molecules and compounds

Atoms never bond together

Atoms bond to form energy only.

Atoms bond together to make molecules and compounds.

Compounds are made of electrons only.

Memorising all the atomic numbers

Drawing cells under a microscope

Defining molecules, compounds, and mixtures

Learning to use a Bunsen burner

A molecule with only one atom type

A molecule with two or more different atom types

A single unbonded atom

A group of mixtures

CO₂

H₂O

O₂

NH₃

They contain only one element

They can be separated easily

They are made of bonded atoms from different elements

They have the same properties as the elements that make them

Compounds are made only in labs

Mixtures are chemically bonded

Compounds have fixed atom ratios; mixtures do not

Mixtures cannot be separated

They are made of only one type of atom.

They are mixtures of atoms and molecules.

They cannot be represented with chemical formulas.

They are made of two or more different atoms chemically bonded.