Matter matters

MATTER

MATTERS

M S J OH N S O N

WHAT IS MATTER? Anything that takes up

spaceExamples

EVERYTHING!!

STATES OF MATTER

ATOMSAtoms are the smallest unit of matter that make up an element

ELEMENTSContain only one kind of atomCannot be broken down into a

simpler type of matter by either physical or chemical means

Atoms: Argon - Ar Molecules: Nitrogen- N2

Charge Location

Mass

Protons 1 Nucleus 1Neutron

sNo

ChargeNucleus 1

Electrons

-1 Electron Cloud

No Mass

Atoms are made of even tinier things ProtonsNeutronsElectrons

SUBATOMIC PARTICLES

MOLECULESSometimes atoms come together

to form MoleculesMolecules are a group of

Chemically combined atoms. Molecules can have 2 atoms or

they may have hundreds of atoms.

COMPOUNDSA compound is a molecule

BUT there are formed when atoms of different elements attach to one anotherEx: WATER: O is Red H is White

COMPOUNDS HAVE DIFFERENT PHYSICAL AND CHEMICAL PROPERTIES THAN THE ELEMENTS THEY ARE MADE OF.

S O D I U M ( N A )

Soft Silvery MetalMelting point of 97.5

°CReacts Violently with

Water

C H LO R I N E ( C L ) Very Toxic Boiling point 34°CGas is Yellow-Green

MIXTURES Most materials are mixtures:

Can be made of elements, compounds, or both

Mixtures can be separated by physical means

Sand and Water

TYPES OF MIXTURES HeterogeneousDifferent components can be seen as individual substances

Homogeneous Have the same composition throughout

Can also be known as a Solution

SOLUTIONAll components are of the same phase

and evenly distributedEX: Sugar and Water

A liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent)

Are all solutions mixtures?

Yes all solutions are mixtures

Are all mixtures solutions?

No, some mixtures “parts” can easily be distinguished

LETS CHECK WHAT YOU KNOW

All mixtures are defined as heterogeneous?

FALSE

As temperature of a mixture increases, one part of the mixture may melt while the other parts remain solid.

TRUE

LETS CHECK WHAT YOU KNOW

ELEMENT, COMPOUND, OR MIXTURE?

WHAT ARE THOSE THINGS?