PARTICLE DIAGRAMS
PARTICLE DIAGRAMS
•
Atoms & molecules are way too small to see. But it’s important to
“see” them so that we can explain why something is happening. So,
we use particle diagrams.
•
Particle Diagrams used to show the particles (atoms or molecules)
in a substance.
•
They’re drawings (diagrams) that show the particles in a substance.
•
We draw particle diagrams for solids, liquids and gases. All of the
examples in this powerpoint are gases.
WHAT CAN YOU SEE IN A
PARTICLE DIAGRAM?
• Mass: A
measure of how much “stuff ” there is. Essentially, how
many particles, and how “massive” the particles are.
l
Smal
mass
• Volume: A
up.
Bigge
r
mass
measure of how much space the particles take
l
Smal
e
volum
Bigge
volum r
e
WHAT CAN YOU SEE IN A
PARTICLE DIAGRAM?
• Temperature: Temperature
just measures how fast the
particles are moving. Faster temperature = faster particles. It’s
hard to show movement in a particle diagram... so we use
wooshies.
e Lowe
r
u
t
a
r Tem
er
p
m
pera
e
T
r
e
ture
High