Atoms (Elements)

Molecules & Compounds

Atom, Molecule or Compound?

Atom, Molecule or Compound?

Atom, Molecule or Compound?

Atom, Molecule or Compound?

Atom, Molecule or Compound?

Atom, Molecule or Compound?

ATOMSmallest unit of matter

Smallest unit into which an element can be divided and still be the same substance

ELEMENT = type of atom

Molecule2 or more atoms bonded together

Can be the same type of atom = molecule of an element

Can be different types of atoms = molecule of a compound

Compound2 or more atoms of different elements bonded to form a new substance

with new properties

Compound2 or more atoms of different elements bonded to form

a new substance with new properties

Example: _____________H = colorless, odorless flammable gas O = colorless, odorless flammable gas H2O = colorless, odorless nonflammable liquid

water = H2O

Classify the following as

Atoms, Molecules, CompoundsElement –

type of atom2 or more

atoms bonded2 or more

different atoms bonded

Note: All compounds are molecules, but not all molecules are compounds